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<p><a href="https://www.php.cn/tool/composer/441817.html">https://www.php.cn/tool/composer/441817.html</a></p><p><br/></p><p style="margin-top: 15px; margin-bottom: 15px; padding: 0px 0px 0px 10px; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); color: rgb(61, 70, 77); box-sizing: border-box; border-radius: 8px; font-family: "Helvetica Neue", Helvetica, "PingFang SC", 微软雅黑, Tahoma, Arial, sans-serif; white-space: normal; background-color: rgb(255, 255, 255); text-align: center;"><img src="/ueditor/php/upload/image/20200222/1582362908600647.jpg" style="margin: 0px; padding: 0px; display: inline-block; vertical-align: middle; border: none; max-width: 760px;"/></p><p style="margin-top: 15px; margin-bottom: 15px; padding: 0px 0px 0px 10px; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); color: rgb(61, 70, 77); box-sizing: border-box; border-radius: 8px; font-family: "Helvetica Neue", Helvetica, "PingFang SC", 微软雅黑, Tahoma, Arial, sans-serif; white-space: normal; background-color: rgb(255, 255, 255);">别再到处搜PHP类扩展包了，对于现代语言而言，包管理器基本上是标配。Java 有 Maven，Python 有 pip，Ruby 有 gem，Nodejs 有 npm。PHP 的则是 PEAR，不过 PEAR 坑不少：</p><p style="margin-top: 15px; margin-bottom: 15px; padding: 0px 0px 0px 10px; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); color: rgb(61, 70, 77); box-sizing: border-box; border-radius: 8px; font-family: "Helvetica Neue", Helvetica, "PingFang SC", 微软雅黑, Tahoma, Arial, sans-serif; white-space: normal; background-color: rgb(255, 255, 255);">● 依赖处理容易出问题</p><p style="margin-top: 15px; margin-bottom: 15px; padding: 0px 0px 0px 10px; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); color: rgb(61, 70, 77); box-sizing: border-box; border-radius: 8px; font-family: "Helvetica Neue", Helvetica, "PingFang SC", 微软雅黑, Tahoma, Arial, sans-serif; white-space: normal; background-color: rgb(255, 255, 255);">● 配置非常复杂</p><p style="margin-top: 15px; margin-bottom: 15px; padding: 0px 0px 0px 10px; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); color: rgb(61, 70, 77); box-sizing: border-box; border-radius: 8px; font-family: "Helvetica Neue", Helvetica, "PingFang SC", 微软雅黑, Tahoma, Arial, sans-serif; white-space: normal; background-color: rgb(255, 255, 255);">● 难用的命令行接口</p><p style="margin-top: 15px; margin-bottom: 15px; padding: 0px 0px 0px 10px; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); color: rgb(61, 70, 77); box-sizing: border-box; border-radius: 8px; font-family: "Helvetica Neue", Helvetica, "PingFang SC", 微软雅黑, Tahoma, Arial, sans-serif; white-space: normal; background-color: rgb(255, 255, 255);">好在我们有 <a href="https://www.php.cn/tool/composer/" target="_blank" style="margin: 0px; padding: 0px; color: rgb(61, 167, 13); text-decoration-line: none !important;"><strong style="margin: 0px; padding: 0px;">Composer</strong></a>，PHP依赖管理的利器。它是开源的，使用起来也很简单，提交自己的包也很容易。</p><p style="margin-top: 15px; margin-bottom: 15px; padding: 0px 0px 0px 10px; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); color: rgb(61, 70, 77); box-sizing: border-box; border-radius: 8px; font-family: "Helvetica Neue", Helvetica, "PingFang SC", 微软雅黑, Tahoma, Arial, sans-serif; white-space: normal; background-color: rgb(255, 255, 255);">举个例子，平时我们开始的时候如果不是用框架，想要一个验证码，就要先去Gihutb或者其他地方找一个验证码类，然后在项目中include一下，再编辑编辑就跑起来了，以至于到后期项目维护都可能会出现问题。在Github上开源的，那还能点个watch，看到有Bug修复或新版本发布，能及时跟着升级。</p><p style="margin-top: 15px; margin-bottom: 15px; padding: 0px 0px 0px 10px; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); color: rgb(61, 70, 77); box-sizing: border-box; border-radius: 8px; font-family: "Helvetica Neue", Helvetica, "PingFang SC", 微软雅黑, Tahoma, Arial, sans-serif; white-space: normal; background-color: rgb(255, 255, 255);">如果下载的扩展包多了，就需要各种include了，还有可能出现命名空间冲突的问题，又要根据项目去更改命名空间，如果扩展包升级了，又要重新下载编辑，这是十分不方便的。所以Composer依赖管理库就这样诞生了。</p><p style="margin-top: 15px; margin-bottom: 15px; padding: 0px 0px 0px 10px; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); color: rgb(61, 70, 77); box-sizing: border-box; border-radius: 8px; font-family: "Helvetica Neue", Helvetica, "PingFang SC", 微软雅黑, Tahoma, Arial, sans-serif; white-space: normal; background-color: rgb(255, 255, 255);"><strong style="margin: 0px; padding: 0px;">上面就是Compser比较重要的需求场景。</strong></p><p style="margin-top: 15px; margin-bottom: 15px; padding: 0px 0px 0px 10px; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); color: rgb(61, 70, 77); box-sizing: border-box; border-radius: 8px; font-family: "Helvetica Neue", Helvetica, "PingFang SC", 微软雅黑, Tahoma, Arial, sans-serif; white-space: normal; background-color: rgb(255, 255, 255);">1.能方便安装升级扩展包</p><p style="margin-top: 15px; margin-bottom: 15px; padding: 0px 0px 0px 10px; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); color: rgb(61, 70, 77); box-sizing: border-box; border-radius: 8px; font-family: "Helvetica Neue", Helvetica, "PingFang SC", 微软雅黑, Tahoma, Arial, sans-serif; white-space: normal; background-color: rgb(255, 255, 255);">2.只include就行，不用到处写include</p><p style="margin-top: 15px; margin-bottom: 15px; padding: 0px 0px 0px 10px; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); color: rgb(61, 70, 77); box-sizing: border-box; border-radius: 8px; font-family: "Helvetica Neue", Helvetica, "PingFang SC", 微软雅黑, Tahoma, Arial, sans-serif; white-space: normal; background-color: rgb(255, 255, 255);">3.避免命名空间的冲突</p><p style="margin-top: 15px; margin-bottom: 15px; padding: 0px 0px 0px 10px; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); color: rgb(61, 70, 77); box-sizing: border-box; border-radius: 8px; font-family: "Helvetica Neue", Helvetica, "PingFang SC", 微软雅黑, Tahoma, Arial, sans-serif; white-space: normal; background-color: rgb(255, 255, 255);">平时都去Github、码云等平台上找扩展包，而现在也有一个网站把所有包综合起来，也就说现在的开发方式：首先在packagist上搜索，然后用Composer安装升级。</p><p style="margin-top: 15px; margin-bottom: 15px; padding: 0px 0px 0px 10px; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); color: rgb(61, 70, 77); box-sizing: border-box; border-radius: 8px; font-family: "Helvetica Neue", Helvetica, "PingFang SC", 微软雅黑, Tahoma, Arial, sans-serif; white-space: normal; background-color: rgb(255, 255, 255);"><strong style="margin: 0px; padding: 0px;">安装Composer</strong></p><p style="margin-top: 15px; margin-bottom: 15px; padding: 0px 0px 0px 10px; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); color: rgb(61, 70, 77); box-sizing: border-box; border-radius: 8px; font-family: "Helvetica Neue", Helvetica, "PingFang SC", 微软雅黑, Tahoma, Arial, sans-serif; white-space: normal; background-color: rgb(255, 255, 255);">傻瓜式安装的话就是直接点击https://getcomposer.org/Composer-Setup.exe，下载安装就行了，安装程序将为你下载Composer并设置你的PATH环境变量，以便你可以简单地Composer从任何目录调用。</p><p style="margin-top: 15px; margin-bottom: 15px; padding: 0px 0px 0px 10px; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); color: rgb(61, 70, 77); box-sizing: border-box; border-radius: 8px; font-family: "Helvetica Neue", Helvetica, "PingFang SC", 微软雅黑, Tahoma, Arial, sans-serif; white-space: normal; background-color: rgb(255, 255, 255);">安装的过程中需要注意的是要找到php.exe的根目录，选择正确的PHP路径。这里就不提供截图了，因为我也没下好，而且我也是手动安装的。</p><p style="margin-top: 15px; margin-bottom: 15px; padding: 0px 0px 0px 10px; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); color: rgb(61, 70, 77); box-sizing: border-box; border-radius: 8px; font-family: "Helvetica Neue", Helvetica, "PingFang SC", 微软雅黑, Tahoma, Arial, sans-serif; white-space: normal; background-color: rgb(255, 255, 255);">选择目录应该是这样的：</p><table cellpadding="0" cellspacing="0" class="syntaxhighlighter js" width="758"><tbody style="margin: 0px !important; padding: 0px !important; border-radius: 0px !important; background: none !important; border: 0px !important; bottom: auto !important; float: none !important; left: auto !important; line-height: 1.1em !important; outline: 0px !important; overflow: visible !important; position: static !important; right: auto !important; top: auto !important; vertical-align: baseline !important; width: auto !important; box-sizing: content-box !important; min-height: auto !important;"><tr style="margin: 0px !important; padding: 0px !important; border-radius: 0px !important; background: none !important; border: 0px !important; bottom: auto !important; float: none !important; left: auto !important; line-height: 1.1em !important; outline: 0px !important; overflow: visible !important; position: static !important; right: auto !important; top: auto !important; vertical-align: baseline !important; width: auto !important; box-sizing: content-box !important; min-height: auto !important;" class="firstRow"><td class="gutter" style="-webkit-tap-highlight-color: rgba(0, 0, 0, 0); margin: 0px !important; border-radius: 4px 0px 0px 4px !important; background: none !important; bottom: auto !important; float: none !important; left: auto !important; line-height: 1.1em !important; outline: 0px !important; overflow: visible !important; position: static !important; right: auto !important; top: auto !important; vertical-align: baseline !important; box-sizing: content-box !important; min-height: auto !important; color: rgb(175, 175, 175) !important; user-select: none !important;" width="NaN"><p class="line number1 index0 alt2" style="margin-top: 15px; margin-bottom: 15px; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); line-height: 1.5em; border-radius: 8px; font-size: 16px; color: rgb(61, 70, 77); box-sizing: border-box; padding-right: 0.5em !important; padding-left: 1em !important; border-left: 3px solid rgb(67, 90, 95) !important; white-space: pre-wrap !important; text-align: right !important;">1</p></td><td class="code" style="-webkit-tap-highlight-color: rgba(0, 0, 0, 0); word-break: break-all; margin: 0px !important; border-radius: 0px !important; background: none !important; bottom: auto !important; float: none !important; left: auto !important; line-height: 1.1em !important; outline: 0px !important; overflow: visible !important; position: static !important; right: auto !important; top: auto !important; vertical-align: baseline !important; box-sizing: content-box !important; min-height: auto !important;" width="717"><p class="line number1 index0 alt2" style="margin-top: 15px; margin-bottom: 15px; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); line-height: 1.5em; border-radius: 8px; font-size: 16px; color: rgb(61, 70, 77); box-sizing: border-box; padding-right: 1em !important; padding-left: 1em !important; border-left: 3px solid rgb(67, 90, 95) !important; white-space: pre-wrap !important;"><code class="js plain" style="padding: 2px 4px; font-size: 13px; color: rgb(199, 37, 78); background-color: rgb(249, 242, 244); border-radius: 4px; font-family: Monaco, Menlo, Consolas, "Courier New", monospace; margin: 0px !important; background-image: none !important; background-position: initial !important; background-size: initial !important; background-repeat: initial !important; background-attachment: initial !important; background-origin: initial !important; background-clip: initial !important; border: 0px !important; bottom: auto !important; float: none !important; left: auto !important; line-height: 1.5em !important; outline: 0px !important; overflow: visible !important; position: static !important; right: auto !important; top: auto !important; vertical-align: baseline !important; width: auto !important; box-sizing: content-box !important; min-height: auto !important;">D:\phpStudy\php\php-7.0.12-nts\php.exe</code></p></td></tr></tbody></table><p style="margin-top: 15px; margin-bottom: 15px; padding: 0px 0px 0px 10px; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); color: rgb(61, 70, 77); box-sizing: border-box; border-radius: 8px; font-family: "Helvetica Neue", Helvetica, "PingFang SC", 微软雅黑, Tahoma, Arial, sans-serif; white-space: normal; background-color: rgb(255, 255, 255);"><br/></p><p style="margin-top: 15px; margin-bottom: 15px; padding: 0px 0px 0px 10px; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); color: rgb(61, 70, 77); box-sizing: border-box; border-radius: 8px; font-family: "Helvetica Neue", Helvetica, "PingFang SC", 微软雅黑, Tahoma, Arial, sans-serif; white-space: normal; background-color: rgb(255, 255, 255);">下面还是着重介绍手动安装的，我觉得这种方法十分好用：</p><p style="margin-top: 15px; margin-bottom: 15px; padding: 0px 0px 0px 10px; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); color: rgb(61, 70, 77); box-sizing: border-box; border-radius: 8px; font-family: "Helvetica Neue", Helvetica, "PingFang SC", 微软雅黑, Tahoma, Arial, sans-serif; white-space: normal; background-color: rgb(255, 255, 255);">先下载一个composer.phar文件，将phar文件放在developer文件夹中，这个你随意，不限制放在哪个文件夹中。</p><p style="margin-top: 15px; margin-bottom: 15px; padding: 0px 0px 0px 10px; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); color: rgb(61, 70, 77); box-sizing: border-box; border-radius: 8px; font-family: "Helvetica Neue", Helvetica, "PingFang SC", 微软雅黑, Tahoma, Arial, sans-serif; white-space: normal; background-color: rgb(255, 255, 255);">然后打开DOS窗口，或者快捷键windows+R输入cmd，使用以下命令，先要进入到你放置phar文件的目录</p><table cellpadding="0" cellspacing="0" class="syntaxhighlighter php" width="758"><tbody style="margin: 0px !important; padding: 0px !important; border-radius: 0px !important; background: none !important; border: 0px !important; bottom: auto !important; float: none !important; left: auto !important; line-height: 1.1em !important; outline: 0px !important; overflow: visible !important; position: static !important; right: auto !important; top: auto !important; vertical-align: baseline !important; width: auto !important; box-sizing: content-box !important; min-height: auto !important;"><tr style="margin: 0px !important; padding: 0px !important; border-radius: 0px !important; background: none !important; border: 0px !important; bottom: auto !important; float: none !important; left: auto !important; line-height: 1.1em !important; outline: 0px !important; overflow: visible !important; position: static !important; right: auto !important; top: auto !important; vertical-align: baseline !important; width: auto !important; box-sizing: content-box !important; min-height: auto !important;" class="firstRow"><td class="gutter" style="-webkit-tap-highlight-color: rgba(0, 0, 0, 0); margin: 0px !important; border-radius: 4px 0px 0px 4px !important; background: none !important; bottom: auto !important; float: none !important; left: auto !important; line-height: 1.1em !important; outline: 0px !important; overflow: visible !important; position: static !important; right: auto !important; top: auto !important; vertical-align: baseline !important; box-sizing: content-box !important; min-height: auto !important; color: rgb(175, 175, 175) !important; user-select: none !important;" width="NaN"><p class="line number1 index0 alt2" style="margin-top: 15px; margin-bottom: 15px; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); line-height: 1.5em; border-radius: 8px; font-size: 16px; color: rgb(61, 70, 77); box-sizing: border-box; padding-right: 0.5em !important; padding-left: 1em !important; border-left: 3px solid rgb(67, 90, 95) !important; white-space: pre-wrap !important; text-align: right !important;">1</p></td><td class="code" style="-webkit-tap-highlight-color: rgba(0, 0, 0, 0); word-break: break-all; margin: 0px !important; border-radius: 0px !important; background: none !important; bottom: auto !important; float: none !important; left: auto !important; line-height: 1.1em !important; outline: 0px !important; overflow: visible !important; position: static !important; right: auto !important; top: auto !important; vertical-align: baseline !important; box-sizing: content-box !important; min-height: auto !important;" width="717"><p class="line number1 index0 alt2" style="margin-top: 15px; margin-bottom: 15px; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); line-height: 1.5em; border-radius: 8px; font-size: 16px; color: rgb(61, 70, 77); box-sizing: border-box; padding-right: 1em !important; padding-left: 1em !important; border-left: 3px solid rgb(67, 90, 95) !important; white-space: pre-wrap !important;"><code class="php plain" style="padding: 2px 4px; font-size: 13px; color: rgb(199, 37, 78); background-color: rgb(249, 242, 244); border-radius: 4px; font-family: Monaco, Menlo, Consolas, "Courier New", monospace; margin: 0px !important; background-image: none !important; background-position: initial !important; background-size: initial !important; background-repeat: initial !important; background-attachment: initial !important; background-origin: initial !important; background-clip: initial !important; border: 0px !important; bottom: auto !important; float: none !important; left: auto !important; line-height: 1.5em !important; outline: 0px !important; overflow: visible !important; position: static !important; right: auto !important; top: auto !important; vertical-align: baseline !important; width: auto !important; box-sizing: content-box !important; min-height: auto !important;">D:\developer\composer></code><code class="php functions" style="padding: 2px 4px; font-size: 13px; color: rgb(199, 37, 78); background-color: rgb(249, 242, 244); border-radius: 4px; font-family: Monaco, Menlo, Consolas, "Courier New", monospace; margin: 0px !important; background-image: none !important; background-position: initial !important; background-size: initial !important; background-repeat: initial !important; background-attachment: initial !important; background-origin: initial !important; background-clip: initial !important; border: 0px !important; bottom: auto !important; float: none !important; left: auto !important; line-height: 1.5em !important; outline: 0px !important; overflow: visible !important; position: static !important; right: auto !important; top: auto !important; vertical-align: baseline !important; width: auto !important; box-sizing: content-box !important; min-height: auto !important;">echo</code> <code class="php plain" style="padding: 2px 4px; font-size: 13px; color: rgb(199, 37, 78); background-color: rgb(249, 242, 244); border-radius: 4px; font-family: Monaco, Menlo, Consolas, "Courier New", monospace; margin: 0px !important; background-image: none !important; background-position: initial !important; background-size: initial !important; background-repeat: initial !important; background-attachment: initial !important; background-origin: initial !important; background-clip: initial !important; border: 0px !important; bottom: auto !important; float: none !important; left: auto !important; line-height: 1.5em !important; outline: 0px !important; overflow: visible !important; position: static !important; right: auto !important; top: auto !important; vertical-align: baseline !important; width: auto !important; box-sizing: content-box !important; min-height: auto !important;">@php </code><code class="php string" style="padding: 2px 4px; font-size: 13px; color: rgb(199, 37, 78); background-color: rgb(249, 242, 244); border-radius: 4px; font-family: Monaco, Menlo, Consolas, "Courier New", monospace; margin: 0px !important; background-image: none !important; background-position: initial !important; background-size: initial !important; background-repeat: initial !important; background-attachment: initial !important; background-origin: initial !important; background-clip: initial !important; border: 0px !important; bottom: auto !important; float: none !important; left: auto !important; line-height: 1.5em !important; outline: 0px !important; overflow: visible !important; position: static !important; right: auto !important; top: auto !important; vertical-align: baseline !important; width: auto !important; box-sizing: content-box !important; min-height: auto !important;">"%~dp0composer.phar"</code> <code class="php plain" style="padding: 2px 4px; font-size: 13px; color: rgb(199, 37, 78); background-color: rgb(249, 242, 244); border-radius: 4px; font-family: Monaco, Menlo, Consolas, "Courier New", monospace; margin: 0px !important; background-image: none !important; background-position: initial !important; background-size: initial !important; background-repeat: initial !important; background-attachment: initial !important; background-origin: initial !important; background-clip: initial !important; border: 0px !important; bottom: auto !important; float: none !important; left: auto !important; line-height: 1.5em !important; outline: 0px !important; overflow: visible !important; position: static !important; right: auto !important; top: auto !important; vertical-align: baseline !important; width: auto !important; box-sizing: content-box !important; min-height: auto !important;">%*>composer.bat</code></p></td></tr></tbody></table><p style="margin-top: 15px; margin-bottom: 15px; padding: 0px 0px 0px 10px; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); color: rgb(61, 70, 77); box-sizing: border-box; border-radius: 8px; font-family: "Helvetica Neue", Helvetica, "PingFang SC", 微软雅黑, Tahoma, Arial, sans-serif; white-space: normal; background-color: rgb(255, 255, 255);">安装成功的标志就是在命令行输入</p><table cellpadding="0" cellspacing="0" class="syntaxhighlighter php" width="758"><tbody style="margin: 0px !important; padding: 0px !important; border-radius: 0px !important; background: none !important; border: 0px !important; bottom: auto !important; float: none !important; left: auto !important; line-height: 1.1em !important; outline: 0px !important; overflow: visible !important; position: static !important; right: auto !important; top: auto !important; vertical-align: baseline !important; width: auto !important; box-sizing: content-box !important; min-height: auto !important;"><tr style="margin: 0px !important; padding: 0px !important; border-radius: 0px !important; background: none !important; border: 0px !important; bottom: auto !important; float: none !important; left: auto !important; line-height: 1.1em !important; outline: 0px !important; overflow: visible !important; position: static !important; right: auto !important; top: auto !important; vertical-align: baseline !important; width: auto !important; box-sizing: content-box !important; min-height: auto !important;" class="firstRow"><td class="gutter" style="-webkit-tap-highlight-color: rgba(0, 0, 0, 0); margin: 0px !important; border-radius: 4px 0px 0px 4px !important; background: none !important; bottom: auto !important; float: none !important; left: auto !important; line-height: 1.1em !important; outline: 0px !important; overflow: visible !important; position: static !important; right: auto !important; top: auto !important; vertical-align: baseline !important; box-sizing: content-box !important; min-height: auto !important; color: rgb(175, 175, 175) !important; user-select: none !important;" width="NaN"><p class="line number1 index0 alt2" style="margin-top: 15px; margin-bottom: 15px; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); line-height: 1.5em; border-radius: 8px; font-size: 16px; color: rgb(61, 70, 77); box-sizing: border-box; padding-right: 0.5em !important; padding-left: 1em !important; border-left: 3px solid rgb(67, 90, 95) !important; white-space: pre-wrap !important; text-align: right !important;">1</p></td><td class="code" style="-webkit-tap-highlight-color: rgba(0, 0, 0, 0); word-break: break-all; margin: 0px !important; border-radius: 0px !important; background: none !important; bottom: auto !important; float: none !important; left: auto !important; line-height: 1.1em !important; outline: 0px !important; overflow: visible !important; position: static !important; right: auto !important; top: auto !important; vertical-align: baseline !important; box-sizing: content-box !important; min-height: auto !important;" width="717"><p class="line number1 index0 alt2" style="margin-top: 15px; margin-bottom: 15px; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); line-height: 1.5em; border-radius: 8px; font-size: 16px; color: rgb(61, 70, 77); box-sizing: border-box; padding-right: 1em !important; padding-left: 1em !important; border-left: 3px solid rgb(67, 90, 95) !important; white-space: pre-wrap !important;"><code class="php plain" style="padding: 2px 4px; font-size: 13px; color: rgb(199, 37, 78); background-color: rgb(249, 242, 244); border-radius: 4px; font-family: Monaco, Menlo, Consolas, "Courier New", monospace; margin: 0px !important; background-image: none !important; background-position: initial !important; background-size: initial !important; background-repeat: initial !important; background-attachment: initial !important; background-origin: initial !important; background-clip: initial !important; border: 0px !important; bottom: auto !important; float: none !important; left: auto !important; line-height: 1.5em !important; outline: 0px !important; overflow: visible !important; position: static !important; right: auto !important; top: auto !important; vertical-align: baseline !important; width: auto !important; box-sizing: content-box !important; min-height: auto !important;">composer -v</code></p></td></tr></tbody></table><p style="margin-top: 15px; margin-bottom: 15px; padding: 0px 0px 0px 10px; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); color: rgb(61, 70, 77); box-sizing: border-box; border-radius: 8px; font-family: "Helvetica Neue", Helvetica, "PingFang SC", 微软雅黑, Tahoma, Arial, sans-serif; white-space: normal; background-color: rgb(255, 255, 255);">显示如下内容</p><p style="margin-top: 15px; margin-bottom: 15px; padding: 0px 0px 0px 10px; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); color: rgb(61, 70, 77); box-sizing: border-box; border-radius: 8px; font-family: "Helvetica Neue", Helvetica, "PingFang SC", 微软雅黑, Tahoma, Arial, sans-serif; white-space: normal; background-color: rgb(255, 255, 255);"><img src="/ueditor/php/upload/image/20200222/1582362908267366.png" title="1580025515171454.png" alt="CSKABH)%$S@QZJ[R{(36587.png" style="margin: 0px; padding: 0px; display: inline-block; vertical-align: middle; border: none; max-width: 760px;"/></p><p style="margin-top: 15px; margin-bottom: 15px; padding: 0px 0px 0px 10px; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); color: rgb(61, 70, 77); box-sizing: border-box; border-radius: 8px; font-family: "Helvetica Neue", Helvetica, "PingFang SC", 微软雅黑, Tahoma, Arial, sans-serif; white-space: normal; background-color: rgb(255, 255, 255);"><br/></p><p style="margin-top: 15px; margin-bottom: 15px; padding: 0px 0px 0px 10px; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); color: rgb(61, 70, 77); box-sizing: border-box; border-radius: 8px; font-family: "Helvetica Neue", Helvetica, "PingFang SC", 微软雅黑, Tahoma, Arial, sans-serif; white-space: normal; background-color: rgb(255, 255, 255);">看到这里我就都当成Composer已经安装成功了，在中国局域网内，使用Composer是比较慢的，不过好在国内有镜像，执行如下命令切换到国内的镜像，国内镜像所做的就是缓存所有安装包和元数据到国内的机房并通过国内的 CDN 进行加速，这样就不必再去向国外的网站发起请求。</p><table cellpadding="0" cellspacing="0" class="syntaxhighlighter php" width="758"><tbody style="margin: 0px !important; padding: 0px !important; border-radius: 0px !important; background: none !important; border: 0px !important; bottom: auto !important; float: none !important; left: auto !important; line-height: 1.1em !important; outline: 0px !important; overflow: visible !important; position: static !important; right: auto !important; top: auto !important; vertical-align: baseline !important; width: auto !important; box-sizing: content-box !important; min-height: auto !important;"><tr style="margin: 0px !important; padding: 0px !important; border-radius: 0px !important; background: none !important; border: 0px !important; bottom: auto !important; float: none !important; left: auto !important; line-height: 1.1em !important; outline: 0px !important; overflow: visible !important; position: static !important; right: auto !important; top: auto !important; vertical-align: baseline !important; width: auto !important; box-sizing: content-box !important; min-height: auto !important;" class="firstRow"><td class="gutter" style="-webkit-tap-highlight-color: rgba(0, 0, 0, 0); margin: 0px !important; border-radius: 4px 0px 0px 4px !important; background: none !important; bottom: auto !important; float: none !important; left: auto !important; line-height: 1.1em !important; outline: 0px !important; overflow: visible !important; position: static !important; right: auto !important; top: auto !important; vertical-align: baseline !important; box-sizing: content-box !important; min-height: auto !important; color: rgb(175, 175, 175) !important; user-select: none !important;" width="NaN"><p class="line number1 index0 alt2" style="margin-top: 15px; margin-bottom: 15px; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); line-height: 1.5em; border-radius: 8px; font-size: 16px; color: rgb(61, 70, 77); box-sizing: border-box; padding-right: 0.5em !important; padding-left: 1em !important; border-left: 3px solid rgb(67, 90, 95) !important; white-space: pre-wrap !important; text-align: right !important;">1</p></td><td class="code" style="-webkit-tap-highlight-color: rgba(0, 0, 0, 0); word-break: break-all; margin: 0px !important; border-radius: 0px !important; background: none !important; bottom: auto !important; float: none !important; left: auto !important; line-height: 1.1em !important; outline: 0px !important; overflow: visible !important; position: static !important; right: auto !important; top: auto !important; vertical-align: baseline !important; box-sizing: content-box !important; min-height: auto !important;" width="717"><p class="line number1 index0 alt2" style="margin-top: 15px; margin-bottom: 15px; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); line-height: 1.5em; border-radius: 8px; font-size: 16px; color: rgb(61, 70, 77); box-sizing: border-box; padding-right: 1em !important; padding-left: 1em !important; border-left: 3px solid rgb(67, 90, 95) !important; white-space: pre-wrap !important;"><code class="php plain" style="padding: 2px 4px; font-size: 13px; color: rgb(199, 37, 78); background-color: rgb(249, 242, 244); border-radius: 4px; font-family: Monaco, Menlo, Consolas, "Courier New", monospace; margin: 0px !important; background-image: none !important; background-position: initial !important; background-size: initial !important; background-repeat: initial !important; background-attachment: initial !important; background-origin: initial !important; background-clip: initial !important; border: 0px !important; bottom: auto !important; float: none !important; left: auto !important; line-height: 1.5em !important; outline: 0px !important; overflow: visible !important; position: static !important; right: auto !important; top: auto !important; vertical-align: baseline !important; width: auto !important; box-sizing: content-box !important; min-height: auto !important;">composer config -g repo.packagist composer https:</code><code class="php comments" style="padding: 2px 4px; font-size: 13px; color: rgb(199, 37, 78); background-color: rgb(249, 242, 244); border-radius: 4px; font-family: Monaco, Menlo, Consolas, "Courier New", monospace; margin: 0px !important; background-image: none !important; background-position: initial !important; background-size: initial !important; background-repeat: initial !important; background-attachment: initial !important; background-origin: initial !important; background-clip: initial !important; border: 0px !important; bottom: auto !important; float: none !important; left: auto !important; line-height: 1.5em !important; outline: 0px !important; overflow: visible !important; position: static !important; right: auto !important; top: auto !important; vertical-align: baseline !important; width: auto !important; box-sizing: content-box !important; min-height: auto !important;">//packagist.phpcomposer.com</code></p></td></tr></tbody></table><p style="margin-top: 15px; margin-bottom: 15px; padding: 0px 0px 0px 10px; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); color: rgb(61, 70, 77); box-sizing: border-box; border-radius: 8px; font-family: "Helvetica Neue", Helvetica, "PingFang SC", 微软雅黑, Tahoma, Arial, sans-serif; white-space: normal; background-color: rgb(255, 255, 255);"><br/></p><p style="margin-top: 15px; margin-bottom: 15px; padding: 0px 0px 0px 10px; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); color: rgb(61, 70, 77); box-sizing: border-box; border-radius: 8px; font-family: "Helvetica Neue", Helvetica, "PingFang SC", 微软雅黑, Tahoma, Arial, sans-serif; white-space: normal; background-color: rgb(255, 255, 255);">这样做就相当于全局更改了配置，我选择修改当前项目的 composer.json 的配置文件：</p><table cellpadding="0" cellspacing="0" class="syntaxhighlighter php" width="758"><tbody style="margin: 0px !important; padding: 0px !important; border-radius: 0px !important; background: none !important; border: 0px !important; bottom: auto !important; float: none !important; left: auto !important; line-height: 1.1em !important; outline: 0px !important; overflow: visible !important; position: static !important; right: auto !important; top: auto !important; vertical-align: baseline !important; width: auto !important; box-sizing: content-box !important; min-height: auto !important;"><tr style="margin: 0px !important; padding: 0px !important; border-radius: 0px !important; background: none !important; border: 0px !important; bottom: auto !important; float: none !important; left: auto !important; line-height: 1.1em !important; outline: 0px !important; overflow: visible !important; position: static !important; right: auto !important; top: auto !important; vertical-align: baseline !important; width: auto !important; box-sizing: content-box !important; min-height: auto !important;" class="firstRow"><td class="gutter" style="-webkit-tap-highlight-color: rgba(0, 0, 0, 0); margin: 0px !important; border-radius: 4px 0px 0px 4px !important; background: none !important; bottom: auto !important; float: none !important; left: auto !important; line-height: 1.1em !important; outline: 0px !important; overflow: visible !important; position: static !important; right: auto !important; top: auto !important; vertical-align: baseline !important; box-sizing: content-box !important; min-height: auto !important; color: rgb(175, 175, 175) !important; user-select: none !important;" width="NaN"><p class="line number1 index0 alt2" style="margin-top: 15px; margin-bottom: 15px; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); line-height: 1.5em; border-radius: 8px; font-size: 16px; color: rgb(61, 70, 77); box-sizing: border-box; padding-right: 0.5em !important; padding-left: 1em !important; border-left: 3px solid rgb(67, 90, 95) !important; white-space: pre-wrap !important; text-align: right !important;">1</p><p class="line number2 index1 alt1" style="margin-top: 15px; margin-bottom: 15px; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); line-height: 1.5em; border-radius: 8px; font-size: 16px; color: rgb(61, 70, 77); box-sizing: border-box; padding-right: 0.5em !important; padding-left: 1em !important; border-left: 3px solid rgb(67, 90, 95) !important; white-space: pre-wrap !important; text-align: right !important;">2</p><p class="line number3 index2 alt2" style="margin-top: 15px; margin-bottom: 15px; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); line-height: 1.5em; border-radius: 8px; font-size: 16px; color: rgb(61, 70, 77); box-sizing: border-box; padding-right: 0.5em !important; padding-left: 1em !important; border-left: 3px solid rgb(67, 90, 95) !important; white-space: pre-wrap !important; text-align: right !important;">3</p><p class="line number4 index3 alt1" style="margin-top: 15px; margin-bottom: 15px; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); line-height: 1.5em; border-radius: 8px; font-size: 16px; color: rgb(61, 70, 77); box-sizing: border-box; padding-right: 0.5em !important; padding-left: 1em !important; border-left: 3px solid rgb(67, 90, 95) !important; white-space: pre-wrap !important; text-align: right !important;">4</p><p class="line number5 index4 alt2" style="margin-top: 15px; margin-bottom: 15px; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); line-height: 1.5em; border-radius: 8px; font-size: 16px; color: rgb(61, 70, 77); box-sizing: border-box; padding-right: 0.5em !important; padding-left: 1em !important; border-left: 3px solid rgb(67, 90, 95) !important; white-space: pre-wrap !important; text-align: right !important;">5</p><p class="line number6 index5 alt1" style="margin-top: 15px; margin-bottom: 15px; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); line-height: 1.5em; border-radius: 8px; font-size: 16px; color: rgb(61, 70, 77); box-sizing: border-box; padding-right: 0.5em !important; padding-left: 1em !important; border-left: 3px solid rgb(67, 90, 95) !important; white-space: pre-wrap !important; text-align: right !important;">6</p><p class="line number7 index6 alt2" style="margin-top: 15px; margin-bottom: 15px; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); line-height: 1.5em; border-radius: 8px; font-size: 16px; color: rgb(61, 70, 77); box-sizing: border-box; padding-right: 0.5em !important; padding-left: 1em !important; border-left: 3px solid rgb(67, 90, 95) !important; white-space: pre-wrap !important; text-align: right !important;">7</p><p class="line number8 index7 alt1" style="margin-top: 15px; margin-bottom: 15px; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); line-height: 1.5em; border-radius: 8px; font-size: 16px; color: rgb(61, 70, 77); box-sizing: border-box; padding-right: 0.5em !important; padding-left: 1em !important; border-left: 3px solid rgb(67, 90, 95) !important; white-space: pre-wrap !important; text-align: right !important;">8</p></td><td class="code" style="-webkit-tap-highlight-color: rgba(0, 0, 0, 0); word-break: break-all; margin: 0px !important; border-radius: 0px !important; background: none !important; bottom: auto !important; float: none !important; left: auto !important; line-height: 1.1em !important; outline: 0px !important; overflow: visible !important; position: static !important; right: auto !important; top: auto !important; vertical-align: baseline !important; box-sizing: content-box !important; min-height: auto !important;" width="717"><p class="line number1 index0 alt2" style="margin-top: 15px; margin-bottom: 15px; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); line-height: 1.5em; border-radius: 8px; font-size: 16px; color: rgb(61, 70, 77); box-sizing: border-box; padding-right: 1em !important; padding-left: 1em !important; border-left: 3px solid rgb(67, 90, 95) !important; white-space: pre-wrap !important;"><code class="php plain" style="padding: 2px 4px; font-size: 13px; color: rgb(199, 37, 78); background-color: rgb(249, 242, 244); border-radius: 4px; font-family: Monaco, Menlo, Consolas, "Courier New", monospace; margin: 0px !important; background-image: none !important; background-position: initial !important; background-size: initial !important; background-repeat: initial !important; background-attachment: initial !important; background-origin: initial !important; background-clip: initial !important; border: 0px !important; bottom: auto !important; float: none !important; left: auto !important; line-height: 1.5em !important; outline: 0px !important; overflow: visible !important; position: static !important; right: auto !important; top: auto !important; vertical-align: baseline !important; width: auto !important; box-sizing: content-box !important; min-height: auto !important;">{</code></p><p class="line number2 index1 alt1" style="margin-top: 15px; margin-bottom: 15px; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); line-height: 1.5em; border-radius: 8px; font-size: 16px; color: rgb(61, 70, 77); box-sizing: border-box; padding-right: 1em !important; padding-left: 1em !important; border-left: 3px solid rgb(67, 90, 95) !important; white-space: pre-wrap !important;"><code class="php spaces" style="padding: 2px 4px; font-size: 13px; color: rgb(199, 37, 78); background-color: rgb(249, 242, 244); border-radius: 4px; font-family: Monaco, Menlo, Consolas, "Courier New", monospace; margin: 0px !important; background-image: none !important; background-position: initial !important; background-size: initial !important; background-repeat: initial !important; background-attachment: initial !important; background-origin: initial !important; background-clip: initial !important; border: 0px !important; bottom: auto !important; float: none !important; left: auto !important; line-height: 1.5em !important; outline: 0px !important; overflow: visible !important; position: static !important; right: auto !important; top: auto !important; vertical-align: baseline !important; width: auto !important; box-sizing: content-box !important; min-height: auto !important;"> </code><code class="php string" style="padding: 2px 4px; font-size: 13px; color: rgb(199, 37, 78); background-color: rgb(249, 242, 244); border-radius: 4px; font-family: Monaco, Menlo, Consolas, "Courier New", monospace; margin: 0px !important; background-image: none !important; background-position: initial !important; background-size: initial !important; background-repeat: initial !important; background-attachment: initial !important; background-origin: initial !important; background-clip: initial !important; border: 0px !important; bottom: auto !important; float: none !important; left: auto !important; line-height: 1.5em !important; outline: 0px !important; overflow: visible !important; position: static !important; right: auto !important; top: auto !important; vertical-align: baseline !important; width: auto !important; box-sizing: content-box !important; min-height: auto !important;">"repositories"</code><code class="php plain" style="padding: 2px 4px; font-size: 13px; color: rgb(199, 37, 78); background-color: rgb(249, 242, 244); border-radius: 4px; font-family: Monaco, Menlo, Consolas, "Courier New", monospace; margin: 0px !important; background-image: none !important; background-position: initial !important; background-size: initial !important; background-repeat: initial !important; background-attachment: initial !important; background-origin: initial !important; background-clip: initial !important; border: 0px !important; bottom: auto !important; float: none !important; left: auto !important; line-height: 1.5em !important; outline: 0px !important; overflow: visible !important; position: static !important; right: auto !important; top: auto !important; vertical-align: baseline !important; width: auto !important; box-sizing: content-box !important; min-height: auto !important;">: {</code></p><p class="line number3 index2 alt2" style="margin-top: 15px; margin-bottom: 15px; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); line-height: 1.5em; border-radius: 8px; font-size: 16px; color: rgb(61, 70, 77); box-sizing: border-box; padding-right: 1em !important; padding-left: 1em !important; border-left: 3px solid rgb(67, 90, 95) !important; white-space: pre-wrap !important;"><code class="php spaces" style="padding: 2px 4px; font-size: 13px; color: rgb(199, 37, 78); background-color: rgb(249, 242, 244); border-radius: 4px; font-family: Monaco, Menlo, Consolas, "Courier New", monospace; margin: 0px !important; background-image: none !important; background-position: initial !important; background-size: initial !important; background-repeat: initial !important; background-attachment: initial !important; background-origin: initial !important; background-clip: initial !important; border: 0px !important; bottom: auto !important; float: none !important; left: auto !important; line-height: 1.5em !important; outline: 0px !important; overflow: visible !important; position: static !important; right: auto !important; top: auto !important; vertical-align: baseline !important; width: auto !important; box-sizing: content-box !important; min-height: auto !important;"> </code><code class="php string" style="padding: 2px 4px; font-size: 13px; color: rgb(199, 37, 78); background-color: rgb(249, 242, 244); border-radius: 4px; font-family: Monaco, Menlo, Consolas, "Courier New", monospace; margin: 0px !important; background-image: none !important; background-position: initial !important; background-size: initial !important; background-repeat: initial !important; background-attachment: initial !important; background-origin: initial !important; background-clip: initial !important; border: 0px !important; bottom: auto !important; float: none !important; left: auto !important; line-height: 1.5em !important; outline: 0px !important; overflow: visible !important; position: static !important; right: auto !important; top: auto !important; vertical-align: baseline !important; width: auto !important; box-sizing: content-box !important; min-height: auto !important;">"packagist"</code><code class="php plain" style="padding: 2px 4px; font-size: 13px; color: rgb(199, 37, 78); background-color: rgb(249, 242, 244); border-radius: 4px; font-family: Monaco, Menlo, Consolas, "Courier New", monospace; margin: 0px !important; background-image: none !important; background-position: initial !important; background-size: initial !important; background-repeat: initial !important; background-attachment: initial !important; background-origin: initial !important; background-clip: initial !important; border: 0px !important; bottom: auto !important; float: none !important; left: auto !important; line-height: 1.5em !important; outline: 0px !important; overflow: visible !important; position: static !important; right: auto !important; top: auto !important; vertical-align: baseline !important; width: auto !important; box-sizing: content-box !important; min-height: auto !important;">: {</code></p><p class="line number4 index3 alt1" style="margin-top: 15px; margin-bottom: 15px; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); line-height: 1.5em; border-radius: 8px; font-size: 16px; color: rgb(61, 70, 77); box-sizing: border-box; padding-right: 1em !important; padding-left: 1em !important; border-left: 3px solid rgb(67, 90, 95) !important; white-space: pre-wrap !important;"><code class="php spaces" style="padding: 2px 4px; font-size: 13px; color: rgb(199, 37, 78); background-color: rgb(249, 242, 244); border-radius: 4px; font-family: Monaco, Menlo, Consolas, "Courier New", monospace; margin: 0px !important; background-image: none !important; background-position: initial !important; background-size: initial !important; background-repeat: initial !important; background-attachment: initial !important; background-origin: initial !important; background-clip: initial !important; border: 0px !important; bottom: auto !important; float: none !important; left: auto !important; line-height: 1.5em !important; outline: 0px !important; overflow: visible !important; position: static !important; right: auto !important; top: auto !important; vertical-align: baseline !important; width: auto !important; box-sizing: content-box !important; min-height: auto !important;"> </code><code class="php string" style="padding: 2px 4px; font-size: 13px; color: rgb(199, 37, 78); background-color: rgb(249, 242, 244); border-radius: 4px; font-family: Monaco, Menlo, Consolas, "Courier New", monospace; margin: 0px !important; background-image: none !important; background-position: initial !important; background-size: initial !important; background-repeat: initial !important; background-attachment: initial !important; background-origin: initial !important; background-clip: initial !important; border: 0px !important; bottom: auto !important; float: none !important; left: auto !important; line-height: 1.5em !important; outline: 0px !important; overflow: visible !important; position: static !important; right: auto !important; top: auto !important; vertical-align: baseline !important; width: auto !important; box-sizing: content-box !important; min-height: auto !important;">"type"</code><code class="php plain" style="padding: 2px 4px; font-size: 13px; color: rgb(199, 37, 78); background-color: rgb(249, 242, 244); border-radius: 4px; font-family: Monaco, Menlo, Consolas, "Courier New", monospace; margin: 0px !important; background-image: none !important; background-position: initial !important; background-size: initial !important; background-repeat: initial !important; background-attachment: initial !important; background-origin: initial !important; background-clip: initial !important; border: 0px !important; bottom: auto !important; float: none !important; left: auto !important; line-height: 1.5em !important; outline: 0px !important; overflow: visible !important; position: static !important; right: auto !important; top: auto !important; vertical-align: baseline !important; width: auto !important; box-sizing: content-box !important; min-height: auto !important;">: </code><code class="php string" style="padding: 2px 4px; font-size: 13px; color: rgb(199, 37, 78); background-color: rgb(249, 242, 244); border-radius: 4px; font-family: Monaco, Menlo, Consolas, "Courier New", monospace; margin: 0px !important; background-image: none !important; background-position: initial !important; background-size: initial !important; background-repeat: initial !important; background-attachment: initial !important; background-origin: initial !important; background-clip: initial !important; border: 0px !important; bottom: auto !important; float: none !important; left: auto !important; line-height: 1.5em !important; outline: 0px !important; overflow: visible !important; position: static !important; right: auto !important; top: auto !important; vertical-align: baseline !important; width: auto !important; box-sizing: content-box !important; min-height: auto !important;">"composer"</code><code class="php plain" style="padding: 2px 4px; font-size: 13px; color: rgb(199, 37, 78); background-color: rgb(249, 242, 244); border-radius: 4px; font-family: Monaco, Menlo, Consolas, "Courier New", monospace; margin: 0px !important; background-image: none !important; background-position: initial !important; background-size: initial !important; background-repeat: initial !important; background-attachment: initial !important; background-origin: initial !important; background-clip: initial !important; border: 0px !important; bottom: auto !important; float: none !important; left: auto !important; line-height: 1.5em !important; outline: 0px !important; overflow: visible !important; position: static !important; right: auto !important; top: auto !important; vertical-align: baseline !important; width: auto !important; box-sizing: content-box !important; min-height: auto !important;">,</code></p><p class="line number5 index4 alt2" style="margin-top: 15px; margin-bottom: 15px; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); line-height: 1.5em; border-radius: 8px; font-size: 16px; color: rgb(61, 70, 77); box-sizing: border-box; padding-right: 1em !important; padding-left: 1em !important; border-left: 3px solid rgb(67, 90, 95) !important; white-space: pre-wrap !important;"><code class="php spaces" style="padding: 2px 4px; font-size: 13px; color: rgb(199, 37, 78); background-color: rgb(249, 242, 244); border-radius: 4px; font-family: Monaco, Menlo, Consolas, "Courier New", monospace; margin: 0px !important; background-image: none !important; background-position: initial !important; background-size: initial !important; background-repeat: initial !important; background-attachment: initial !important; background-origin: initial !important; background-clip: initial !important; border: 0px !important; bottom: auto !important; float: none !important; left: auto !important; line-height: 1.5em !important; outline: 0px !important; overflow: visible !important; position: static !important; right: auto !important; top: auto !important; vertical-align: baseline !important; width: auto !important; box-sizing: content-box !important; min-height: auto !important;"> </code><code class="php string" style="padding: 2px 4px; font-size: 13px; color: rgb(199, 37, 78); background-color: rgb(249, 242, 244); border-radius: 4px; font-family: Monaco, Menlo, Consolas, "Courier New", monospace; margin: 0px !important; background-image: none !important; background-position: initial !important; background-size: initial !important; background-repeat: initial !important; background-attachment: initial !important; background-origin: initial !important; background-clip: initial !important; border: 0px !important; bottom: auto !important; float: none !important; left: auto !important; line-height: 1.5em !important; outline: 0px !important; overflow: visible !important; position: static !important; right: auto !important; top: auto !important; vertical-align: baseline !important; width: auto !important; box-sizing: content-box !important; min-height: auto !important;">"url"</code><code class="php plain" style="padding: 2px 4px; font-size: 13px; color: rgb(199, 37, 78); background-color: rgb(249, 242, 244); border-radius: 4px; font-family: Monaco, Menlo, Consolas, "Courier New", monospace; margin: 0px !important; background-image: none !important; background-position: initial !important; background-size: initial !important; background-repeat: initial !important; background-attachment: initial !important; background-origin: initial !important; background-clip: initial !important; border: 0px !important; bottom: auto !important; float: none !important; left: auto !important; line-height: 1.5em !important; outline: 0px !important; overflow: visible !important; position: static !important; right: auto !important; top: auto !important; vertical-align: baseline !important; width: auto !important; box-sizing: content-box !important; min-height: auto !important;">: </code><code class="php string" style="padding: 2px 4px; font-size: 13px; color: rgb(199, 37, 78); background-color: rgb(249, 242, 244); border-radius: 4px; font-family: Monaco, Menlo, Consolas, "Courier New", monospace; margin: 0px !important; background-image: none !important; background-position: initial !important; background-size: initial !important; background-repeat: initial !important; background-attachment: initial !important; background-origin: initial !important; background-clip: initial !important; border: 0px !important; bottom: auto !important; float: none !important; left: auto !important; line-height: 1.5em !important; outline: 0px !important; overflow: visible !important; position: static !important; right: auto !important; top: auto !important; vertical-align: baseline !important; width: auto !important; box-sizing: content-box !important; min-height: auto !important;">"https://packagist.phpcomposer.com"</code></p><p class="line number6 index5 alt1" style="margin-top: 15px; margin-bottom: 15px; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); line-height: 1.5em; border-radius: 8px; font-size: 16px; color: rgb(61, 70, 77); box-sizing: border-box; padding-right: 1em !important; padding-left: 1em !important; border-left: 3px solid rgb(67, 90, 95) !important; white-space: pre-wrap !important;"><code class="php spaces" style="padding: 2px 4px; font-size: 13px; color: rgb(199, 37, 78); background-color: rgb(249, 242, 244); border-radius: 4px; font-family: Monaco, Menlo, Consolas, "Courier New", monospace; margin: 0px !important; background-image: none !important; background-position: initial !important; background-size: initial !important; background-repeat: initial !important; background-attachment: initial !important; background-origin: initial !important; background-clip: initial !important; border: 0px !important; bottom: auto !important; float: none !important; left: auto !important; line-height: 1.5em !important; outline: 0px !important; overflow: visible !important; position: static !important; right: auto !important; top: auto !important; vertical-align: baseline !important; width: auto !important; box-sizing: content-box !important; min-height: auto !important;"> </code><code class="php plain" style="padding: 2px 4px; font-size: 13px; color: rgb(199, 37, 78); background-color: rgb(249, 242, 244); border-radius: 4px; font-family: Monaco, Menlo, Consolas, "Courier New", monospace; margin: 0px !important; background-image: none !important; background-position: initial !important; background-size: initial !important; background-repeat: initial !important; background-attachment: initial !important; background-origin: initial !important; background-clip: initial !important; border: 0px !important; bottom: auto !important; float: none !important; left: auto !important; line-height: 1.5em !important; outline: 0px !important; overflow: visible !important; position: static !important; right: auto !important; top: auto !important; vertical-align: baseline !important; width: auto !important; box-sizing: content-box !important; min-height: auto !important;">}</code></p><p class="line number7 index6 alt2" style="margin-top: 15px; margin-bottom: 15px; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); line-height: 1.5em; border-radius: 8px; font-size: 16px; color: rgb(61, 70, 77); box-sizing: border-box; padding-right: 1em !important; padding-left: 1em !important; border-left: 3px solid rgb(67, 90, 95) !important; white-space: pre-wrap !important;"><code class="php spaces" style="padding: 2px 4px; font-size: 13px; color: rgb(199, 37, 78); background-color: rgb(249, 242, 244); border-radius: 4px; font-family: Monaco, Menlo, Consolas, "Courier New", monospace; margin: 0px !important; background-image: none !important; background-position: initial !important; background-size: initial !important; background-repeat: initial !important; background-attachment: initial !important; background-origin: initial !important; background-clip: initial !important; border: 0px !important; bottom: auto !important; float: none !important; left: auto !important; line-height: 1.5em !important; outline: 0px !important; overflow: visible !important; position: static !important; right: auto !important; top: auto !important; vertical-align: baseline !important; width: auto !important; box-sizing: content-box !important; min-height: auto !important;"> </code><code class="php plain" style="padding: 2px 4px; font-size: 13px; color: rgb(199, 37, 78); background-color: rgb(249, 242, 244); border-radius: 4px; font-family: Monaco, Menlo, Consolas, "Courier New", monospace; margin: 0px !important; background-image: none !important; background-position: initial !important; background-size: initial !important; background-repeat: initial !important; background-attachment: initial !important; background-origin: initial !important; background-clip: initial !important; border: 0px !important; bottom: auto !important; float: none !important; left: auto !important; line-height: 1.5em !important; outline: 0px !important; overflow: visible !important; position: static !important; right: auto !important; top: auto !important; vertical-align: baseline !important; width: auto !important; box-sizing: content-box !important; min-height: auto !important;">}</code></p><p class="line number8 index7 alt1" style="margin-top: 15px; margin-bottom: 15px; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); line-height: 1.5em; border-radius: 8px; font-size: 16px; color: rgb(61, 70, 77); box-sizing: border-box; padding-right: 1em !important; padding-left: 1em !important; border-left: 3px solid rgb(67, 90, 95) !important; white-space: pre-wrap !important;"><code class="php plain" style="padding: 2px 4px; font-size: 13px; color: rgb(199, 37, 78); background-color: rgb(249, 242, 244); border-radius: 4px; font-family: Monaco, Menlo, Consolas, "Courier New", monospace; margin: 0px !important; background-image: none !important; background-position: initial !important; background-size: initial !important; background-repeat: initial !important; background-attachment: initial !important; background-origin: initial !important; background-clip: initial !important; border: 0px !important; bottom: auto !important; float: none !important; left: auto !important; line-height: 1.5em !important; outline: 0px !important; overflow: visible !important; position: static !important; right: auto !important; top: auto !important; vertical-align: baseline !important; width: auto !important; box-sizing: content-box !important; min-height: auto !important;">}</code></p></td></tr></tbody></table><p style="margin-top: 15px; margin-bottom: 15px; padding: 0px 0px 0px 10px; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); color: rgb(61, 70, 77); box-sizing: border-box; border-radius: 8px; font-family: "Helvetica Neue", Helvetica, "PingFang SC", 微软雅黑, Tahoma, Arial, sans-serif; white-space: normal; background-color: rgb(255, 255, 255);"><br/></p><p style="margin-top: 15px; margin-bottom: 15px; padding: 0px 0px 0px 10px; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); color: rgb(61, 70, 77); box-sizing: border-box; border-radius: 8px; font-family: "Helvetica Neue", Helvetica, "PingFang SC", 微软雅黑, Tahoma, Arial, sans-serif; white-space: normal; background-color: rgb(255, 255, 255);"><strong style="margin: 0px; padding: 0px;">composer常用命令</strong></p><p style="margin-top: 15px; margin-bottom: 15px; padding: 0px 0px 0px 10px; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); color: rgb(61, 70, 77); box-sizing: border-box; border-radius: 8px; font-family: "Helvetica Neue", Helvetica, "PingFang SC", 微软雅黑, Tahoma, Arial, sans-serif; white-space: normal; background-color: rgb(255, 255, 255);"><code style="margin: 0px; padding: 2px 4px; font-size: 14.4px; color: rgb(199, 37, 78); background-color: rgb(249, 242, 244); border-radius: 4px;"><strong style="margin: 0px; padding: 0px;">selfupdate</strong></code></p><p style="margin-top: 15px; margin-bottom: 15px; padding: 0px 0px 0px 10px; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); color: rgb(61, 70, 77); box-sizing: border-box; border-radius: 8px; font-family: "Helvetica Neue", Helvetica, "PingFang SC", 微软雅黑, Tahoma, Arial, sans-serif; white-space: normal; background-color: rgb(255, 255, 255);">更新 composer 本身，请经常执行 composer selfupdate 以保持 Composer 一直是最新版本。</p><table cellpadding="0" cellspacing="0" class="syntaxhighlighter php" width="758"><tbody style="margin: 0px !important; padding: 0px !important; border-radius: 0px !important; background: none !important; border: 0px !important; bottom: auto !important; float: none !important; left: auto !important; line-height: 1.1em !important; outline: 0px !important; overflow: visible !important; position: static !important; right: auto !important; top: auto !important; vertical-align: baseline !important; width: auto !important; box-sizing: content-box !important; min-height: auto !important;"><tr style="margin: 0px !important; padding: 0px !important; border-radius: 0px !important; background: none !important; border: 0px !important; bottom: auto !important; float: none !important; left: auto !important; line-height: 1.1em !important; outline: 0px !important; overflow: visible !important; position: static !important; right: auto !important; top: auto !important; vertical-align: baseline !important; width: auto !important; box-sizing: content-box !important; min-height: auto !important;" class="firstRow"><td class="gutter" style="-webkit-tap-highlight-color: rgba(0, 0, 0, 0); margin: 0px !important; border-radius: 4px 0px 0px 4px !important; background: none !important; bottom: auto !important; float: none !important; left: auto !important; line-height: 1.1em !important; outline: 0px !important; overflow: visible !important; position: static !important; right: auto !important; top: auto !important; vertical-align: baseline !important; box-sizing: content-box !important; min-height: auto !important; color: rgb(175, 175, 175) !important; user-select: none !important;" width="NaN"><p class="line number1 index0 alt2" style="margin-top: 15px; margin-bottom: 15px; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); line-height: 1.5em; border-radius: 8px; font-size: 16px; color: rgb(61, 70, 77); box-sizing: border-box; padding-right: 0.5em !important; padding-left: 1em !important; border-left: 3px solid rgb(67, 90, 95) !important; white-space: pre-wrap !important; text-align: right !important;">1</p></td><td class="code" style="-webkit-tap-highlight-color: rgba(0, 0, 0, 0); word-break: break-all; margin: 0px !important; border-radius: 0px !important; background: none !important; bottom: auto !important; float: none !important; left: auto !important; line-height: 1.1em !important; outline: 0px !important; overflow: visible !important; position: static !important; right: auto !important; top: auto !important; vertical-align: baseline !important; box-sizing: content-box !important; min-height: auto !important;" width="717"><p class="line number1 index0 alt2" style="margin-top: 15px; margin-bottom: 15px; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); line-height: 1.5em; border-radius: 8px; font-size: 16px; color: rgb(61, 70, 77); box-sizing: border-box; padding-right: 1em !important; padding-left: 1em !important; border-left: 3px solid rgb(67, 90, 95) !important; white-space: pre-wrap !important;"><code class="php plain" style="padding: 2px 4px; font-size: 13px; color: rgb(199, 37, 78); background-color: rgb(249, 242, 244); border-radius: 4px; font-family: Monaco, Menlo, Consolas, "Courier New", monospace; margin: 0px !important; background-image: none !important; background-position: initial !important; background-size: initial !important; background-repeat: initial !important; background-attachment: initial !important; background-origin: initial !important; background-clip: initial !important; border: 0px !important; bottom: auto !important; float: none !important; left: auto !important; line-height: 1.5em !important; outline: 0px !important; overflow: visible !important; position: static !important; right: auto !important; top: auto !important; vertical-align: baseline !important; width: auto !important; box-sizing: content-box !important; min-height: auto !important;">composer selfupdate</code></p></td></tr></tbody></table><p style="margin-top: 15px; margin-bottom: 15px; padding: 0px 0px 0px 10px; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); color: rgb(61, 70, 77); box-sizing: border-box; border-radius: 8px; font-family: "Helvetica Neue", Helvetica, "PingFang SC", 微软雅黑, Tahoma, Arial, sans-serif; white-space: normal; background-color: rgb(255, 255, 255);">等价于</p><table cellpadding="0" cellspacing="0" class="syntaxhighlighter php" width="758"><tbody style="margin: 0px !important; padding: 0px !important; border-radius: 0px !important; background: none !important; border: 0px !important; bottom: auto !important; float: none !important; left: auto !important; line-height: 1.1em !important; outline: 0px !important; overflow: visible !important; position: static !important; right: auto !important; top: auto !important; vertical-align: baseline !important; width: auto !important; box-sizing: content-box !important; min-height: auto !important;"><tr style="margin: 0px !important; padding: 0px !important; border-radius: 0px !important; background: none !important; border: 0px !important; bottom: auto !important; float: none !important; left: auto !important; line-height: 1.1em !important; outline: 0px !important; overflow: visible !important; position: static !important; right: auto !important; top: auto !important; vertical-align: baseline !important; width: auto !important; box-sizing: content-box !important; min-height: auto !important;" class="firstRow"><td class="gutter" style="-webkit-tap-highlight-color: rgba(0, 0, 0, 0); margin: 0px !important; border-radius: 4px 0px 0px 4px !important; background: none !important; bottom: auto !important; float: none !important; left: auto !important; line-height: 1.1em !important; outline: 0px !important; overflow: visible !important; position: static !important; right: auto !important; top: auto !important; vertical-align: baseline !important; box-sizing: content-box !important; min-height: auto !important; color: rgb(175, 175, 175) !important; user-select: none !important;" width="NaN"><p class="line number1 index0 alt2" style="margin-top: 15px; margin-bottom: 15px; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); line-height: 1.5em; border-radius: 8px; font-size: 16px; color: rgb(61, 70, 77); box-sizing: border-box; padding-right: 0.5em !important; padding-left: 1em !important; border-left: 3px solid rgb(67, 90, 95) !important; white-space: pre-wrap !important; text-align: right !important;">1</p></td><td class="code" style="-webkit-tap-highlight-color: rgba(0, 0, 0, 0); word-break: break-all; margin: 0px !important; border-radius: 0px !important; background: none !important; bottom: auto !important; float: none !important; left: auto !important; line-height: 1.1em !important; outline: 0px !important; overflow: visible !important; position: static !important; right: auto !important; top: auto !important; vertical-align: baseline !important; box-sizing: content-box !important; min-height: auto !important;" width="717"><p class="line number1 index0 alt2" style="margin-top: 15px; margin-bottom: 15px; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); line-height: 1.5em; border-radius: 8px; font-size: 16px; color: rgb(61, 70, 77); box-sizing: border-box; padding-right: 1em !important; padding-left: 1em !important; border-left: 3px solid rgb(67, 90, 95) !important; white-space: pre-wrap !important;"><code class="php plain" style="padding: 2px 4px; font-size: 13px; color: rgb(199, 37, 78); background-color: rgb(249, 242, 244); border-radius: 4px; font-family: Monaco, Menlo, Consolas, "Courier New", monospace; margin: 0px !important; background-image: none !important; background-position: initial !important; background-size: initial !important; background-repeat: initial !important; background-attachment: initial !important; background-origin: initial !important; background-clip: initial !important; border: 0px !important; bottom: auto !important; float: none !important; left: auto !important; line-height: 1.5em !important; outline: 0px !important; overflow: visible !important; position: static !important; right: auto !important; top: auto !important; vertical-align: baseline !important; width: auto !important; box-sizing: content-box !important; min-height: auto !important;">composer self-update</code></p></td></tr></tbody></table><p style="margin-top: 15px; margin-bottom: 15px; padding: 0px 0px 0px 10px; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); color: rgb(61, 70, 77); box-sizing: border-box; border-radius: 8px; font-family: "Helvetica Neue", Helvetica, "PingFang SC", 微软雅黑, Tahoma, Arial, sans-serif; white-space: normal; background-color: rgb(255, 255, 255);"><code style="margin: 0px; padding: 2px 4px; font-size: 14.4px; color: rgb(199, 37, 78); background-color: rgb(249, 242, 244); border-radius: 4px;"><strong style="margin: 0px; padding: 0px;">dumpautoload</strong></code></p><p style="margin-top: 15px; margin-bottom: 15px; padding: 0px 0px 0px 10px; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); color: rgb(61, 70, 77); box-sizing: border-box; border-radius: 8px; font-family: "Helvetica Neue", Helvetica, "PingFang SC", 微软雅黑, Tahoma, Arial, sans-serif; white-space: normal; background-color: rgb(255, 255, 255);">当我们更改了 composer.json 文件中的 autoload 时，需要执行 composer dumpautoload，来让 autoload 立即生效。而不必执行 install 或 update 命令。</p><table cellpadding="0" cellspacing="0" class="syntaxhighlighter php" width="758"><tbody style="margin: 0px !important; padding: 0px !important; border-radius: 0px !important; background: none !important; border: 0px !important; bottom: auto !important; float: none !important; left: auto !important; line-height: 1.1em !important; outline: 0px !important; overflow: visible !important; position: static !important; right: auto !important; top: auto !important; vertical-align: baseline !important; width: auto !important; box-sizing: content-box !important; min-height: auto !important;"><tr style="margin: 0px !important; padding: 0px !important; border-radius: 0px !important; background: none !important; border: 0px !important; bottom: auto !important; float: none !important; left: auto !important; line-height: 1.1em !important; outline: 0px !important; overflow: visible !important; position: static !important; right: auto !important; top: auto !important; vertical-align: baseline !important; width: auto !important; box-sizing: content-box !important; min-height: auto !important;" class="firstRow"><td class="gutter" style="-webkit-tap-highlight-color: rgba(0, 0, 0, 0); margin: 0px !important; border-radius: 4px 0px 0px 4px !important; background: none !important; bottom: auto !important; float: none !important; left: auto !important; line-height: 1.1em !important; outline: 0px !important; overflow: visible !important; position: static !important; right: auto !important; top: auto !important; vertical-align: baseline !important; box-sizing: content-box !important; min-height: auto !important; color: rgb(175, 175, 175) !important; user-select: none !important;" width="NaN"><p class="line number1 index0 alt2" style="margin-top: 15px; margin-bottom: 15px; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); line-height: 1.5em; border-radius: 8px; font-size: 16px; color: rgb(61, 70, 77); box-sizing: border-box; padding-right: 0.5em !important; padding-left: 1em !important; border-left: 3px solid rgb(67, 90, 95) !important; white-space: pre-wrap !important; text-align: right !important;">1</p></td><td class="code" style="-webkit-tap-highlight-color: rgba(0, 0, 0, 0); word-break: break-all; margin: 0px !important; border-radius: 0px !important; background: none !important; bottom: auto !important; float: none !important; left: auto !important; line-height: 1.1em !important; outline: 0px !important; overflow: visible !important; position: static !important; right: auto !important; top: auto !important; vertical-align: baseline !important; box-sizing: content-box !important; min-height: auto !important;" width="717"><p class="line number1 index0 alt2" style="margin-top: 15px; margin-bottom: 15px; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); line-height: 1.5em; border-radius: 8px; font-size: 16px; color: rgb(61, 70, 77); box-sizing: border-box; padding-right: 1em !important; padding-left: 1em !important; border-left: 3px solid rgb(67, 90, 95) !important; white-space: pre-wrap !important;"><code class="php plain" style="padding: 2px 4px; font-size: 13px; color: rgb(199, 37, 78); background-color: rgb(249, 242, 244); border-radius: 4px; font-family: Monaco, Menlo, Consolas, "Courier New", monospace; margin: 0px !important; background-image: none !important; background-position: initial !important; background-size: initial !important; background-repeat: initial !important; background-attachment: initial !important; background-origin: initial !important; background-clip: initial !important; border: 0px !important; bottom: auto !important; float: none !important; left: auto !important; line-height: 1.5em !important; outline: 0px !important; overflow: visible !important; position: static !important; right: auto !important; top: auto !important; vertical-align: baseline !important; width: auto !important; box-sizing: content-box !important; min-height: auto !important;">composer dumpautoload</code></p></td></tr></tbody></table><p style="margin-top: 15px; margin-bottom: 15px; padding: 0px 0px 0px 10px; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); color: rgb(61, 70, 77); box-sizing: border-box; border-radius: 8px; font-family: "Helvetica Neue", Helvetica, "PingFang SC", 微软雅黑, Tahoma, Arial, sans-serif; white-space: normal; background-color: rgb(255, 255, 255);">等价于</p><table cellpadding="0" cellspacing="0" class="syntaxhighlighter php" width="758"><tbody style="margin: 0px !important; padding: 0px !important; border-radius: 0px !important; background: none !important; border: 0px !important; bottom: auto !important; float: none !important; left: auto !important; line-height: 1.1em !important; outline: 0px !important; overflow: visible !important; position: static !important; right: auto !important; top: auto !important; vertical-align: baseline !important; width: auto !important; box-sizing: content-box !important; min-height: auto !important;"><tr style="margin: 0px !important; padding: 0px !important; border-radius: 0px !important; background: none !important; border: 0px !important; bottom: auto !important; float: none !important; left: auto !important; line-height: 1.1em !important; outline: 0px !important; overflow: visible !important; position: static !important; right: auto !important; top: auto !important; vertical-align: baseline !important; width: auto !important; box-sizing: content-box !important; min-height: auto !important;" class="firstRow"><td class="gutter" style="-webkit-tap-highlight-color: rgba(0, 0, 0, 0); margin: 0px !important; border-radius: 4px 0px 0px 4px !important; background: none !important; bottom: auto !important; float: none !important; left: auto !important; line-height: 1.1em !important; outline: 0px !important; overflow: visible !important; position: static !important; right: auto !important; top: auto !important; vertical-align: baseline !important; box-sizing: content-box !important; min-height: auto !important; color: rgb(175, 175, 175) !important; user-select: none !important;" width="NaN"><p class="line number1 index0 alt2" style="margin-top: 15px; margin-bottom: 15px; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); line-height: 1.5em; border-radius: 8px; font-size: 16px; color: rgb(61, 70, 77); box-sizing: border-box; padding-right: 0.5em !important; padding-left: 1em !important; border-left: 3px solid rgb(67, 90, 95) !important; white-space: pre-wrap !important; text-align: right !important;">1</p></td><td class="code" style="-webkit-tap-highlight-color: rgba(0, 0, 0, 0); word-break: break-all; margin: 0px !important; border-radius: 0px !important; background: none !important; bottom: auto !important; float: none !important; left: auto !important; line-height: 1.1em !important; outline: 0px !important; overflow: visible !important; position: static !important; right: auto !important; top: auto !important; vertical-align: baseline !important; box-sizing: content-box !important; min-height: auto !important;" width="717"><p class="line number1 index0 alt2" style="margin-top: 15px; margin-bottom: 15px; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); line-height: 1.5em; border-radius: 8px; font-size: 16px; color: rgb(61, 70, 77); box-sizing: border-box; padding-right: 1em !important; padding-left: 1em !important; border-left: 3px solid rgb(67, 90, 95) !important; white-space: pre-wrap !important;"><code class="php plain" style="padding: 2px 4px; font-size: 13px; color: rgb(199, 37, 78); background-color: rgb(249, 242, 244); border-radius: 4px; font-family: Monaco, Menlo, Consolas, "Courier New", monospace; margin: 0px !important; background-image: none !important; background-position: initial !important; background-size: initial !important; background-repeat: initial !important; background-attachment: initial !important; background-origin: initial !important; background-clip: initial !important; border: 0px !important; bottom: auto !important; float: none !important; left: auto !important; line-height: 1.5em !important; outline: 0px !important; overflow: visible !important; position: static !important; right: auto !important; top: auto !important; vertical-align: baseline !important; width: auto !important; box-sizing: content-box !important; min-height: auto !important;">composer dump-autoload</code></p></td></tr></tbody></table><p style="margin-top: 15px; margin-bottom: 15px; padding: 0px 0px 0px 10px; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); color: rgb(61, 70, 77); box-sizing: border-box; border-radius: 8px; font-family: "Helvetica Neue", Helvetica, "PingFang SC", 微软雅黑, Tahoma, Arial, sans-serif; white-space: normal; background-color: rgb(255, 255, 255);">dumpautoload 命令有两个常用的选项：</p><p style="margin-top: 15px; margin-bottom: 15px; padding: 0px 0px 0px 10px; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); color: rgb(61, 70, 77); box-sizing: border-box; border-radius: 8px; font-family: "Helvetica Neue", Helvetica, "PingFang SC", 微软雅黑, Tahoma, Arial, sans-serif; white-space: normal; background-color: rgb(255, 255, 255);">--optimize (-o)： 转换 PSR-0/4 autoloading 到 classmap ，以获得更快的载入速度。这特别适用于生产环境，但可能需要一些时间来运行，因此它目前不是默认设置。</p><p style="margin-top: 15px; margin-bottom: 15px; padding: 0px 0px 0px 10px; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); color: rgb(61, 70, 77); box-sizing: border-box; border-radius: 8px; font-family: "Helvetica Neue", Helvetica, "PingFang SC", 微软雅黑, Tahoma, Arial, sans-serif; white-space: normal; background-color: rgb(255, 255, 255);">--no-dev： 禁用 autoload-dev 规则。</p><p style="margin-top: 15px; margin-bottom: 15px; padding: 0px 0px 0px 10px; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); color: rgb(61, 70, 77); box-sizing: border-box; border-radius: 8px; font-family: "Helvetica Neue", Helvetica, "PingFang SC", 微软雅黑, Tahoma, Arial, sans-serif; white-space: normal; background-color: rgb(255, 255, 255);"><br/></p><p style="margin-top: 15px; margin-bottom: 15px; padding: 0px 0px 0px 10px; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); color: rgb(61, 70, 77); box-sizing: border-box; border-radius: 8px; font-family: "Helvetica Neue", Helvetica, "PingFang SC", 微软雅黑, Tahoma, Arial, sans-serif; white-space: normal; background-color: rgb(255, 255, 255);"><strong style="margin: 0px; padding: 0px;">install</strong></p><table cellpadding="0" cellspacing="0" class="syntaxhighlighter php" width="758"><tbody style="margin: 0px !important; padding: 0px !important; border-radius: 0px !important; background: none !important; border: 0px !important; bottom: auto !important; float: none !important; left: auto !important; line-height: 1.1em !important; outline: 0px !important; overflow: visible !important; position: static !important; right: auto !important; top: auto !important; vertical-align: baseline !important; width: auto !important; box-sizing: content-box !important; min-height: auto !important;"><tr style="margin: 0px !important; padding: 0px !important; border-radius: 0px !important; background: none !important; border: 0px !important; bottom: auto !important; float: none !important; left: auto !important; line-height: 1.1em !important; outline: 0px !important; overflow: visible !important; position: static !important; right: auto !important; top: auto !important; vertical-align: baseline !important; width: auto !important; box-sizing: content-box !important; min-height: auto !important;" class="firstRow"><td class="gutter" style="-webkit-tap-highlight-color: rgba(0, 0, 0, 0); margin: 0px !important; border-radius: 4px 0px 0px 4px !important; background: none !important; bottom: auto !important; float: none !important; left: auto !important; line-height: 1.1em !important; outline: 0px !important; overflow: visible !important; position: static !important; right: auto !important; top: auto !important; vertical-align: baseline !important; box-sizing: content-box !important; min-height: auto !important; color: rgb(175, 175, 175) !important; user-select: none !important;" width="NaN"><p class="line number1 index0 alt2" style="margin-top: 15px; margin-bottom: 15px; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); line-height: 1.5em; border-radius: 8px; font-size: 16px; color: rgb(61, 70, 77); box-sizing: border-box; padding-right: 0.5em !important; padding-left: 1em !important; border-left: 3px solid rgb(67, 90, 95) !important; white-space: pre-wrap !important; text-align: right !important;">1</p></td><td class="code" style="-webkit-tap-highlight-color: rgba(0, 0, 0, 0); word-break: break-all; margin: 0px !important; border-radius: 0px !important; background: none !important; bottom: auto !important; float: none !important; left: auto !important; line-height: 1.1em !important; outline: 0px !important; overflow: visible !important; position: static !important; right: auto !important; top: auto !important; vertical-align: baseline !important; box-sizing: content-box !important; min-height: auto !important;" width="717"><p class="line number1 index0 alt2" style="margin-top: 15px; margin-bottom: 15px; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); line-height: 1.5em; border-radius: 8px; font-size: 16px; color: rgb(61, 70, 77); box-sizing: border-box; padding-right: 1em !important; padding-left: 1em !important; border-left: 3px solid rgb(67, 90, 95) !important; white-space: pre-wrap !important;"><code class="php plain" style="padding: 2px 4px; font-size: 13px; color: rgb(199, 37, 78); background-color: rgb(249, 242, 244); border-radius: 4px; font-family: Monaco, Menlo, Consolas, "Courier New", monospace; margin: 0px !important; background-image: none !important; background-position: initial !important; background-size: initial !important; background-repeat: initial !important; background-attachment: initial !important; background-origin: initial !important; background-clip: initial !important; border: 0px !important; bottom: auto !important; float: none !important; left: auto !important; line-height: 1.5em !important; outline: 0px !important; overflow: visible !important; position: static !important; right: auto !important; top: auto !important; vertical-align: baseline !important; width: auto !important; box-sizing: content-box !important; min-height: auto !important;">composer install</code></p></td></tr></tbody></table><p style="margin-top: 15px; margin-bottom: 15px; padding: 0px 0px 0px 10px; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); color: rgb(61, 70, 77); box-sizing: border-box; border-radius: 8px; font-family: "Helvetica Neue", Helvetica, "PingFang SC", 微软雅黑, Tahoma, Arial, sans-serif; white-space: normal; background-color: rgb(255, 255, 255);"><br/></p><p style="margin-top: 15px; margin-bottom: 15px; padding: 0px 0px 0px 10px; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); color: rgb(61, 70, 77); box-sizing: border-box; border-radius: 8px; font-family: "Helvetica Neue", Helvetica, "PingFang SC", 微软雅黑, Tahoma, Arial, sans-serif; white-space: normal; background-color: rgb(255, 255, 255);">依据当前目录下的 composer.lock（锁文件） 或 composer.json 文件，所定义的依赖关系，安装依赖包。</p><p style="margin-top: 15px; margin-bottom: 15px; padding: 0px 0px 0px 10px; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); color: rgb(61, 70, 77); box-sizing: border-box; border-radius: 8px; font-family: "Helvetica Neue", Helvetica, "PingFang SC", 微软雅黑, Tahoma, Arial, sans-serif; white-space: normal; background-color: rgb(255, 255, 255);">install 命令会先检查 composer.lock 锁文件是否存在，如果存在，它将下载 composer.lock 文件中指定的版本，而忽略 composer.json 文件中的定义。</p><table cellpadding="0" cellspacing="0" class="syntaxhighlighter php" width="758"><tbody style="margin: 0px !important; padding: 0px !important; border-radius: 0px !important; background: none !important; border: 0px !important; bottom: auto !important; float: none !important; left: auto !important; line-height: 1.1em !important; outline: 0px !important; overflow: visible !important; position: static !important; right: auto !important; top: auto !important; vertical-align: baseline !important; width: auto !important; box-sizing: content-box !important; min-height: auto !important;"><tr style="margin: 0px !important; padding: 0px !important; border-radius: 0px !important; background: none !important; border: 0px !important; bottom: auto !important; float: none !important; left: auto !important; line-height: 1.1em !important; outline: 0px !important; overflow: visible !important; position: static !important; right: auto !important; top: auto !important; vertical-align: baseline !important; width: auto !important; box-sizing: content-box !important; min-height: auto !important;" class="firstRow"><td class="gutter" style="-webkit-tap-highlight-color: rgba(0, 0, 0, 0); margin: 0px !important; border-radius: 4px 0px 0px 4px !important; background: none !important; bottom: auto !important; float: none !important; left: auto !important; line-height: 1.1em !important; outline: 0px !important; overflow: visible !important; position: static !important; right: auto !important; top: auto !important; vertical-align: baseline !important; box-sizing: content-box !important; min-height: auto !important; color: rgb(175, 175, 175) !important; user-select: none !important;" width="NaN"><p class="line number1 index0 alt2" style="margin-top: 15px; margin-bottom: 15px; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); line-height: 1.5em; border-radius: 8px; font-size: 16px; color: rgb(61, 70, 77); box-sizing: border-box; padding-right: 0.5em !important; padding-left: 1em !important; border-left: 3px solid rgb(67, 90, 95) !important; white-space: pre-wrap !important; text-align: right !important;">1</p><p class="line number2 index1 alt1" style="margin-top: 15px; margin-bottom: 15px; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); line-height: 1.5em; border-radius: 8px; font-size: 16px; color: rgb(61, 70, 77); box-sizing: border-box; padding-right: 0.5em !important; padding-left: 1em !important; border-left: 3px solid rgb(67, 90, 95) !important; white-space: pre-wrap !important; text-align: right !important;">2</p><p class="line number3 index2 alt2" style="margin-top: 15px; margin-bottom: 15px; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); line-height: 1.5em; border-radius: 8px; font-size: 16px; color: rgb(61, 70, 77); box-sizing: border-box; padding-right: 0.5em !important; padding-left: 1em !important; border-left: 3px solid rgb(67, 90, 95) !important; white-space: pre-wrap !important; text-align: right !important;">3</p><p class="line number4 index3 alt1" style="margin-top: 15px; margin-bottom: 15px; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); line-height: 1.5em; border-radius: 8px; font-size: 16px; color: rgb(61, 70, 77); box-sizing: border-box; padding-right: 0.5em !important; padding-left: 1em !important; border-left: 3px solid rgb(67, 90, 95) !important; white-space: pre-wrap !important; text-align: right !important;">4</p></td><td class="code" style="-webkit-tap-highlight-color: rgba(0, 0, 0, 0); word-break: break-all; margin: 0px !important; border-radius: 0px !important; background: none !important; bottom: auto !important; float: none !important; left: auto !important; line-height: 1.1em !important; outline: 0px !important; overflow: visible !important; position: static !important; right: auto !important; top: auto !important; vertical-align: baseline !important; box-sizing: content-box !important; min-height: auto !important;" width="717"><p class="line number1 index0 alt2" style="margin-top: 15px; margin-bottom: 15px; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); line-height: 1.5em; border-radius: 8px; font-size: 16px; color: rgb(61, 70, 77); box-sizing: border-box; padding-right: 1em !important; padding-left: 1em !important; border-left: 3px solid rgb(67, 90, 95) !important; white-space: pre-wrap !important;"><code class="php plain" style="padding: 2px 4px; font-size: 13px; color: rgb(199, 37, 78); background-color: rgb(249, 242, 244); border-radius: 4px; font-family: Monaco, Menlo, Consolas, "Courier New", monospace; margin: 0px !important; background-image: none !important; background-position: initial !important; background-size: initial !important; background-repeat: initial !important; background-attachment: initial !important; background-origin: initial !important; background-clip: initial !important; border: 0px !important; bottom: auto !important; float: none !important; left: auto !important; line-height: 1.5em !important; outline: 0px !important; overflow: visible !important; position: static !important; right: auto !important; top: auto !important; vertical-align: baseline !important; width: auto !important; box-sizing: content-box !important; min-height: auto !important;"># 查看 composer install 的帮助信息</code></p><p class="line number2 index1 alt1" style="margin-top: 15px; margin-bottom: 15px; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); line-height: 1.5em; border-radius: 8px; font-size: 16px; color: rgb(61, 70, 77); box-sizing: border-box; padding-right: 1em !important; padding-left: 1em !important; border-left: 3px solid rgb(67, 90, 95) !important; white-space: pre-wrap !important;"><code class="php plain" style="padding: 2px 4px; font-size: 13px; color: rgb(199, 37, 78); background-color: rgb(249, 242, 244); border-radius: 4px; font-family: Monaco, Menlo, Consolas, "Courier New", monospace; margin: 0px !important; background-image: none !important; background-position: initial !important; background-size: initial !important; background-repeat: initial !important; background-attachment: initial !important; background-origin: initial !important; background-clip: initial !important; border: 0px !important; bottom: auto !important; float: none !important; left: auto !important; line-height: 1.5em !important; outline: 0px !important; overflow: visible !important; position: static !important; right: auto !important; top: auto !important; vertical-align: baseline !important; width: auto !important; box-sizing: content-box !important; min-height: auto !important;">composer install -h</code></p><p class="line number3 index2 alt2" style="margin-top: 15px; margin-bottom: 15px; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); line-height: 1.5em; border-radius: 8px; font-size: 16px; color: rgb(61, 70, 77); box-sizing: border-box; padding-right: 1em !important; padding-left: 1em !important; border-left: 3px solid rgb(67, 90, 95) !important; white-space: pre-wrap !important;"><code class="php plain" style="padding: 2px 4px; font-size: 13px; color: rgb(199, 37, 78); background-color: rgb(249, 242, 244); border-radius: 4px; font-family: Monaco, Menlo, Consolas, "Courier New", monospace; margin: 0px !important; background-image: none !important; background-position: initial !important; background-size: initial !important; background-repeat: initial !important; background-attachment: initial !important; background-origin: initial !important; background-clip: initial !important; border: 0px !important; bottom: auto !important; float: none !important; left: auto !important; line-height: 1.5em !important; outline: 0px !important; overflow: visible !important; position: static !important; right: auto !important; top: auto !important; vertical-align: baseline !important; width: auto !important; box-sizing: content-box !important; min-height: auto !important;"># 只安装 </code><code class="php keyword" style="padding: 2px 4px; font-size: 13px; color: rgb(199, 37, 78); background-color: rgb(249, 242, 244); border-radius: 4px; font-family: Monaco, Menlo, Consolas, "Courier New", monospace; margin: 0px !important; background-image: none !important; background-position: initial !important; background-size: initial !important; background-repeat: initial !important; background-attachment: initial !important; background-origin: initial !important; background-clip: initial !important; border: 0px !important; bottom: auto !important; float: none !important; left: auto !important; line-height: 1.5em !important; outline: 0px !important; overflow: visible !important; position: static !important; right: auto !important; top: auto !important; vertical-align: baseline !important; width: auto !important; box-sizing: content-box !important; font-weight: bold !important; min-height: auto !important;">require</code> <code class="php plain" style="padding: 2px 4px; font-size: 13px; color: rgb(199, 37, 78); background-color: rgb(249, 242, 244); border-radius: 4px; font-family: Monaco, Menlo, Consolas, "Courier New", monospace; margin: 0px !important; background-image: none !important; background-position: initial !important; background-size: initial !important; background-repeat: initial !important; background-attachment: initial !important; background-origin: initial !important; background-clip: initial !important; border: 0px !important; bottom: auto !important; float: none !important; left: auto !important; line-height: 1.5em !important; outline: 0px !important; overflow: visible !important; position: static !important; right: auto !important; top: auto !important; vertical-align: baseline !important; width: auto !important; box-sizing: content-box !important; min-height: auto !important;">中定义的依赖，而不安装 </code><code class="php keyword" style="padding: 2px 4px; font-size: 13px; color: rgb(199, 37, 78); background-color: rgb(249, 242, 244); border-radius: 4px; font-family: Monaco, Menlo, Consolas, "Courier New", monospace; margin: 0px !important; background-image: none !important; background-position: initial !important; background-size: initial !important; background-repeat: initial !important; background-attachment: initial !important; background-origin: initial !important; background-clip: initial !important; border: 0px !important; bottom: auto !important; float: none !important; left: auto !important; line-height: 1.5em !important; outline: 0px !important; overflow: visible !important; position: static !important; right: auto !important; top: auto !important; vertical-align: baseline !important; width: auto !important; box-sizing: content-box !important; font-weight: bold !important; min-height: auto !important;">require</code><code class="php plain" style="padding: 2px 4px; font-size: 13px; color: rgb(199, 37, 78); background-color: rgb(249, 242, 244); border-radius: 4px; font-family: Monaco, Menlo, Consolas, "Courier New", monospace; margin: 0px !important; background-image: none !important; background-position: initial !important; background-size: initial !important; background-repeat: initial !important; background-attachment: initial !important; background-origin: initial !important; background-clip: initial !important; border: 0px !important; bottom: auto !important; float: none !important; left: auto !important; line-height: 1.5em !important; outline: 0px !important; overflow: visible !important; position: static !important; right: auto !important; top: auto !important; vertical-align: baseline !important; width: auto !important; box-sizing: content-box !important; min-height: auto !important;">-dev 中定义的依赖</code></p><p class="line number4 index3 alt1" style="margin-top: 15px; margin-bottom: 15px; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); line-height: 1.5em; border-radius: 8px; font-size: 16px; color: rgb(61, 70, 77); box-sizing: border-box; padding-right: 1em !important; padding-left: 1em !important; border-left: 3px solid rgb(67, 90, 95) !important; white-space: pre-wrap !important;"><code class="php plain" style="padding: 2px 4px; font-size: 13px; color: rgb(199, 37, 78); background-color: rgb(249, 242, 244); border-radius: 4px; font-family: Monaco, Menlo, Consolas, "Courier New", monospace; margin: 0px !important; background-image: none !important; background-position: initial !important; background-size: initial !important; background-repeat: initial !important; background-attachment: initial !important; background-origin: initial !important; background-clip: initial !important; border: 0px !important; bottom: auto !important; float: none !important; left: auto !important; line-height: 1.5em !important; outline: 0px !important; overflow: visible !important; position: static !important; right: auto !important; top: auto !important; vertical-align: baseline !important; width: auto !important; box-sizing: content-box !important; min-height: auto !important;">composer install --no-dev</code></p></td></tr></tbody></table><p style="margin-top: 15px; margin-bottom: 15px; padding: 0px 0px 0px 10px; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); color: rgb(61, 70, 77); box-sizing: border-box; border-radius: 8px; font-family: "Helvetica Neue", Helvetica, "PingFang SC", 微软雅黑, Tahoma, Arial, sans-serif; white-space: normal; background-color: rgb(255, 255, 255);"><code style="margin: 0px; padding: 2px 4px; font-size: 14.4px; color: rgb(199, 37, 78); background-color: rgb(249, 242, 244); border-radius: 4px;"><strong style="margin: 0px; padding: 0px;">update</strong></code></p><p style="margin-top: 15px; margin-bottom: 15px; padding: 0px 0px 0px 10px; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); color: rgb(61, 70, 77); box-sizing: border-box; border-radius: 8px; font-family: "Helvetica Neue", Helvetica, "PingFang SC", 微软雅黑, Tahoma, Arial, sans-serif; white-space: normal; background-color: rgb(255, 255, 255);">如果你想更新你的依赖版本，或者你修改了 composer.json 中的依赖关系，想让 composer 按照 composer.json 文件中的定义执行更新操作，就用 update 命令。</p><table cellpadding="0" cellspacing="0" class="syntaxhighlighter php" width="758"><tbody style="margin: 0px !important; padding: 0px !important; border-radius: 0px !important; background: none !important; border: 0px !important; bottom: auto !important; float: none !important; left: auto !important; line-height: 1.1em !important; outline: 0px !important; overflow: visible !important; position: static !important; right: auto !important; top: auto !important; vertical-align: baseline !important; width: auto !important; box-sizing: content-box !important; min-height: auto !important;"><tr style="margin: 0px !important; padding: 0px !important; border-radius: 0px !important; background: none !important; border: 0px !important; bottom: auto !important; float: none !important; left: auto !important; line-height: 1.1em !important; outline: 0px !important; overflow: visible !important; position: static !important; right: auto !important; top: auto !important; vertical-align: baseline !important; width: auto !important; box-sizing: content-box !important; min-height: auto !important;" class="firstRow"><td class="gutter" style="-webkit-tap-highlight-color: rgba(0, 0, 0, 0); margin: 0px !important; border-radius: 4px 0px 0px 4px !important; background: none !important; bottom: auto !important; float: none !important; left: auto !important; line-height: 1.1em !important; outline: 0px !important; overflow: visible !important; position: static !important; right: auto !important; top: auto !important; vertical-align: baseline !important; box-sizing: content-box !important; min-height: auto !important; color: rgb(175, 175, 175) !important; user-select: none !important;" width="NaN"><p class="line number1 index0 alt2" style="margin-top: 15px; margin-bottom: 15px; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); line-height: 1.5em; border-radius: 8px; font-size: 16px; color: rgb(61, 70, 77); box-sizing: border-box; padding-right: 0.5em !important; padding-left: 1em !important; border-left: 3px solid rgb(67, 90, 95) !important; white-space: pre-wrap !important; text-align: right !important;">1</p></td><td class="code" style="-webkit-tap-highlight-color: rgba(0, 0, 0, 0); word-break: break-all; margin: 0px !important; border-radius: 0px !important; background: none !important; bottom: auto !important; float: none !important; left: auto !important; line-height: 1.1em !important; outline: 0px !important; overflow: visible !important; position: static !important; right: auto !important; top: auto !important; vertical-align: baseline !important; box-sizing: content-box !important; min-height: auto !important;" width="717"><p class="line number1 index0 alt2" style="margin-top: 15px; margin-bottom: 15px; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); line-height: 1.5em; border-radius: 8px; font-size: 16px; color: rgb(61, 70, 77); box-sizing: border-box; padding-right: 1em !important; padding-left: 1em !important; border-left: 3px solid rgb(67, 90, 95) !important; white-space: pre-wrap !important;"><code class="php plain" style="padding: 2px 4px; font-size: 13px; color: rgb(199, 37, 78); background-color: rgb(249, 242, 244); border-radius: 4px; font-family: Monaco, Menlo, Consolas, "Courier New", monospace; margin: 0px !important; background-image: none !important; background-position: initial !important; background-size: initial !important; background-repeat: initial !important; background-attachment: initial !important; background-origin: initial !important; background-clip: initial !important; border: 0px !important; bottom: auto !important; float: none !important; left: auto !important; line-height: 1.5em !important; outline: 0px !important; overflow: visible !important; position: static !important; right: auto !important; top: auto !important; vertical-align: baseline !important; width: auto !important; box-sizing: content-box !important; min-height: auto !important;">composer update</code></p></td></tr></tbody></table><p style="margin-top: 15px; margin-bottom: 15px; padding: 0px 0px 0px 10px; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); color: rgb(61, 70, 77); box-sizing: border-box; border-radius: 8px; font-family: "Helvetica Neue", Helvetica, "PingFang SC", 微软雅黑, Tahoma, Arial, sans-serif; white-space: normal; background-color: rgb(255, 255, 255);"><br/></p><p style="margin-top: 15px; margin-bottom: 15px; padding: 0px 0px 0px 10px; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); color: rgb(61, 70, 77); box-sizing: border-box; border-radius: 8px; font-family: "Helvetica Neue", Helvetica, "PingFang SC", 微软雅黑, Tahoma, Arial, sans-serif; white-space: normal; background-color: rgb(255, 255, 255);"><code style="margin: 0px; padding: 2px 4px; font-size: 14.4px; color: rgb(199, 37, 78); background-color: rgb(249, 242, 244); border-radius: 4px;"><strong style="margin: 0px; padding: 0px;">require</strong></code></p><p style="margin-top: 15px; margin-bottom: 15px; padding: 0px 0px 0px 10px; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); color: rgb(61, 70, 77); box-sizing: border-box; border-radius: 8px; font-family: "Helvetica Neue", Helvetica, "PingFang SC", 微软雅黑, Tahoma, Arial, sans-serif; white-space: normal; background-color: rgb(255, 255, 255);">require 命令一般用来安装新的依赖包，并将依赖写入当前目录的 composer.json 文件中。</p><p style="margin-top: 15px; margin-bottom: 15px; padding: 0px 0px 0px 10px; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); color: rgb(61, 70, 77); box-sizing: border-box; border-radius: 8px; font-family: "Helvetica Neue", Helvetica, "PingFang SC", 微软雅黑, Tahoma, Arial, sans-serif; white-space: normal; background-color: rgb(255, 255, 255);">如果 composer.json 文件中，添加或改变了依赖，修改后的依赖关系将被安装或者更新。</p><p style="margin-top: 15px; margin-bottom: 15px; padding: 0px 0px 0px 10px; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); color: rgb(61, 70, 77); box-sizing: border-box; border-radius: 8px; font-family: "Helvetica Neue", Helvetica, "PingFang SC", 微软雅黑, Tahoma, Arial, sans-serif; white-space: normal; background-color: rgb(255, 255, 255);"><code style="margin: 0px; padding: 2px 4px; font-size: 14.4px; color: rgb(199, 37, 78); background-color: rgb(249, 242, 244); border-radius: 4px;"><strong style="margin: 0px; padding: 0px;">composer require</strong></code></p><p style="margin-top: 15px; margin-bottom: 15px; padding: 0px 0px 0px 10px; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); color: rgb(61, 70, 77); box-sizing: border-box; border-radius: 8px; font-family: "Helvetica Neue", Helvetica, "PingFang SC", 微软雅黑, Tahoma, Arial, sans-serif; white-space: normal; background-color: rgb(255, 255, 255);"><br/></p><p style="margin-top: 15px; margin-bottom: 15px; padding: 0px 0px 0px 10px; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); color: rgb(61, 70, 77); box-sizing: border-box; border-radius: 8px; font-family: "Helvetica Neue", Helvetica, "PingFang SC", 微软雅黑, Tahoma, Arial, sans-serif; white-space: normal; background-color: rgb(255, 255, 255);">你也可以直接在命令中指明需要安装的依赖包。</p><table cellpadding="0" cellspacing="0" class="syntaxhighlighter php" width="758"><tbody style="margin: 0px !important; padding: 0px !important; border-radius: 0px !important; background: none !important; border: 0px !important; bottom: auto !important; float: none !important; left: auto !important; line-height: 1.1em !important; outline: 0px !important; overflow: visible !important; position: static !important; right: auto !important; top: auto !important; vertical-align: baseline !important; width: auto !important; box-sizing: content-box !important; min-height: auto !important;"><tr style="margin: 0px !important; padding: 0px !important; border-radius: 0px !important; background: none !important; border: 0px !important; bottom: auto !important; float: none !important; left: auto !important; line-height: 1.1em !important; outline: 0px !important; overflow: visible !important; position: static !important; right: auto !important; top: auto !important; vertical-align: baseline !important; width: auto !important; box-sizing: content-box !important; min-height: auto !important;" class="firstRow"><td class="gutter" style="-webkit-tap-highlight-color: rgba(0, 0, 0, 0); margin: 0px !important; border-radius: 4px 0px 0px 4px !important; background: none !important; bottom: auto !important; float: none !important; left: auto !important; line-height: 1.1em !important; outline: 0px !important; overflow: visible !important; position: static !important; right: auto !important; top: auto !important; vertical-align: baseline !important; box-sizing: content-box !important; min-height: auto !important; color: rgb(175, 175, 175) !important; user-select: none !important;" width="NaN"><p class="line number1 index0 alt2" style="margin-top: 15px; margin-bottom: 15px; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); line-height: 1.5em; border-radius: 8px; font-size: 16px; color: rgb(61, 70, 77); box-sizing: border-box; padding-right: 0.5em !important; padding-left: 1em !important; border-left: 3px solid rgb(67, 90, 95) !important; white-space: pre-wrap !important; text-align: right !important;">1</p></td><td class="code" style="-webkit-tap-highlight-color: rgba(0, 0, 0, 0); word-break: break-all; margin: 0px !important; border-radius: 0px !important; background: none !important; bottom: auto !important; float: none !important; left: auto !important; line-height: 1.1em !important; outline: 0px !important; overflow: visible !important; position: static !important; right: auto !important; top: auto !important; vertical-align: baseline !important; box-sizing: content-box !important; min-height: auto !important;" width="717"><p class="line number1 index0 alt2" style="margin-top: 15px; margin-bottom: 15px; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); line-height: 1.5em; border-radius: 8px; font-size: 16px; color: rgb(61, 70, 77); box-sizing: border-box; padding-right: 1em !important; padding-left: 1em !important; border-left: 3px solid rgb(67, 90, 95) !important; white-space: pre-wrap !important;"><code class="php plain" style="padding: 2px 4px; font-size: 13px; color: rgb(199, 37, 78); background-color: rgb(249, 242, 244); border-radius: 4px; font-family: Monaco, Menlo, Consolas, "Courier New", monospace; margin: 0px !important; background-image: none !important; background-position: initial !important; background-size: initial !important; background-repeat: initial !important; background-attachment: initial !important; background-origin: initial !important; background-clip: initial !important; border: 0px !important; bottom: auto !important; float: none !important; left: auto !important; line-height: 1.5em !important; outline: 0px !important; overflow: visible !important; position: static !important; right: auto !important; top: auto !important; vertical-align: baseline !important; width: auto !important; box-sizing: content-box !important; min-height: auto !important;">composer </code><code class="php keyword" style="padding: 2px 4px; font-size: 13px; color: rgb(199, 37, 78); background-color: rgb(249, 242, 244); border-radius: 4px; font-family: Monaco, Menlo, Consolas, "Courier New", monospace; margin: 0px !important; background-image: none !important; background-position: initial !important; background-size: initial !important; background-repeat: initial !important; background-attachment: initial !important; background-origin: initial !important; background-clip: initial !important; border: 0px !important; bottom: auto !important; float: none !important; left: auto !important; line-height: 1.5em !important; outline: 0px !important; overflow: visible !important; position: static !important; right: auto !important; top: auto !important; vertical-align: baseline !important; width: auto !important; box-sizing: content-box !important; font-weight: bold !important; min-height: auto !important;">require</code> <code class="php plain" style="padding: 2px 4px; font-size: 13px; color: rgb(199, 37, 78); background-color: rgb(249, 242, 244); border-radius: 4px; font-family: Monaco, Menlo, Consolas, "Courier New", monospace; margin: 0px !important; background-image: none !important; background-position: initial !important; background-size: initial !important; background-repeat: initial !important; background-attachment: initial !important; background-origin: initial !important; background-clip: initial !important; border: 0px !important; bottom: auto !important; float: none !important; left: auto !important; line-height: 1.5em !important; outline: 0px !important; overflow: visible !important; position: static !important; right: auto !important; top: auto !important; vertical-align: baseline !important; width: auto !important; box-sizing: content-box !important; min-height: auto !important;">barryvdh/laravel-ide-helper</code></p></td></tr></tbody></table><p style="margin-top: 15px; margin-bottom: 15px; padding: 0px 0px 0px 10px; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); color: rgb(61, 70, 77); box-sizing: border-box; border-radius: 8px; font-family: "Helvetica Neue", Helvetica, "PingFang SC", 微软雅黑, Tahoma, Arial, sans-serif; white-space: normal; background-color: rgb(255, 255, 255);"><br/></p><p style="margin-top: 15px; margin-bottom: 15px; padding: 0px 0px 0px 10px; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); color: rgb(61, 70, 77); box-sizing: border-box; border-radius: 8px; font-family: "Helvetica Neue", Helvetica, "PingFang SC", 微软雅黑, Tahoma, Arial, sans-serif; white-space: normal; background-color: rgb(255, 255, 255);">--dev 选项和 require-dev 相对应。如果你的依赖包仅仅用于开发环境，建议加上 --dev 选项。</p><table cellpadding="0" cellspacing="0" class="syntaxhighlighter php" width="758"><tbody style="margin: 0px !important; padding: 0px !important; border-radius: 0px !important; background: none !important; border: 0px !important; bottom: auto !important; float: none !important; left: auto !important; line-height: 1.1em !important; outline: 0px !important; overflow: visible !important; position: static !important; right: auto !important; top: auto !important; vertical-align: baseline !important; width: auto !important; box-sizing: content-box !important; min-height: auto !important;"><tr style="margin: 0px !important; padding: 0px !important; border-radius: 0px !important; background: none !important; border: 0px !important; bottom: auto !important; float: none !important; left: auto !important; line-height: 1.1em !important; outline: 0px !important; overflow: visible !important; position: static !important; right: auto !important; top: auto !important; vertical-align: baseline !important; width: auto !important; box-sizing: content-box !important; min-height: auto !important;" class="firstRow"><td class="gutter" style="-webkit-tap-highlight-color: rgba(0, 0, 0, 0); margin: 0px !important; border-radius: 4px 0px 0px 4px !important; background: none !important; bottom: auto !important; float: none !important; left: auto !important; line-height: 1.1em !important; outline: 0px !important; overflow: visible !important; position: static !important; right: auto !important; top: auto !important; vertical-align: baseline !important; box-sizing: content-box !important; min-height: auto !important; color: rgb(175, 175, 175) !important; user-select: none !important;" width="NaN"><p class="line number1 index0 alt2" style="margin-top: 15px; margin-bottom: 15px; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); line-height: 1.5em; border-radius: 8px; font-size: 16px; color: rgb(61, 70, 77); box-sizing: border-box; padding-right: 0.5em !important; padding-left: 1em !important; border-left: 3px solid rgb(67, 90, 95) !important; white-space: pre-wrap !important; text-align: right !important;">1</p></td><td class="code" style="-webkit-tap-highlight-color: rgba(0, 0, 0, 0); word-break: break-all; margin: 0px !important; border-radius: 0px !important; background: none !important; bottom: auto !important; float: none !important; left: auto !important; line-height: 1.1em !important; outline: 0px !important; overflow: visible !important; position: static !important; right: auto !important; top: auto !important; vertical-align: baseline !important; box-sizing: content-box !important; min-height: auto !important;" width="717"><p class="line number1 index0 alt2" style="margin-top: 15px; margin-bottom: 15px; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); line-height: 1.5em; border-radius: 8px; font-size: 16px; color: rgb(61, 70, 77); box-sizing: border-box; padding-right: 1em !important; padding-left: 1em !important; border-left: 3px solid rgb(67, 90, 95) !important; white-space: pre-wrap !important;"><code class="php plain" style="padding: 2px 4px; font-size: 13px; color: rgb(199, 37, 78); background-color: rgb(249, 242, 244); border-radius: 4px; font-family: Monaco, Menlo, Consolas, "Courier New", monospace; margin: 0px !important; background-image: none !important; background-position: initial !important; background-size: initial !important; background-repeat: initial !important; background-attachment: initial !important; background-origin: initial !important; background-clip: initial !important; border: 0px !important; bottom: auto !important; float: none !important; left: auto !important; line-height: 1.5em !important; outline: 0px !important; overflow: visible !important; position: static !important; right: auto !important; top: auto !important; vertical-align: baseline !important; width: auto !important; box-sizing: content-box !important; min-height: auto !important;">composer </code><code class="php keyword" style="padding: 2px 4px; font-size: 13px; color: rgb(199, 37, 78); background-color: rgb(249, 242, 244); border-radius: 4px; font-family: Monaco, Menlo, Consolas, "Courier New", monospace; margin: 0px !important; background-image: none !important; background-position: initial !important; background-size: initial !important; background-repeat: initial !important; background-attachment: initial !important; background-origin: initial !important; background-clip: initial !important; border: 0px !important; bottom: auto !important; float: none !important; left: auto !important; line-height: 1.5em !important; outline: 0px !important; overflow: visible !important; position: static !important; right: auto !important; top: auto !important; vertical-align: baseline !important; width: auto !important; box-sizing: content-box !important; font-weight: bold !important; min-height: auto !important;">require</code> <code class="php plain" style="padding: 2px 4px; font-size: 13px; color: rgb(199, 37, 78); background-color: rgb(249, 242, 244); border-radius: 4px; font-family: Monaco, Menlo, Consolas, "Courier New", monospace; margin: 0px !important; background-image: none !important; background-position: initial !important; background-size: initial !important; background-repeat: initial !important; background-attachment: initial !important; background-origin: initial !important; background-clip: initial !important; border: 0px !important; bottom: auto !important; float: none !important; left: auto !important; line-height: 1.5em !important; outline: 0px !important; overflow: visible !important; position: static !important; right: auto !important; top: auto !important; vertical-align: baseline !important; width: auto !important; box-sizing: content-box !important; min-height: auto !important;">--dev barryvdh/laravel-ide-helper</code></p></td></tr></tbody></table><p style="margin-top: 15px; margin-bottom: 15px; padding: 0px 0px 0px 10px; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); color: rgb(61, 70, 77); box-sizing: border-box; border-radius: 8px; font-family: "Helvetica Neue", Helvetica, "PingFang SC", 微软雅黑, Tahoma, Arial, sans-serif; white-space: normal; background-color: rgb(255, 255, 255);"><br/></p><p style="margin-top: 15px; margin-bottom: 15px; padding: 0px 0px 0px 10px; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); color: rgb(61, 70, 77); box-sizing: border-box; border-radius: 8px; font-family: "Helvetica Neue", Helvetica, "PingFang SC", 微软雅黑, Tahoma, Arial, sans-serif; white-space: normal; background-color: rgb(255, 255, 255);"><br/></p><p style="margin-top: 15px; margin-bottom: 15px; padding: 0px 0px 0px 10px; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); color: rgb(61, 70, 77); box-sizing: border-box; border-radius: 8px; font-family: "Helvetica Neue", Helvetica, "PingFang SC", 微软雅黑, Tahoma, Arial, sans-serif; white-space: normal; background-color: rgb(255, 255, 255);"><code style="margin: 0px; padding: 2px 4px; font-size: 14.4px; color: rgb(199, 37, 78); background-color: rgb(249, 242, 244); border-radius: 4px;"><strong style="margin: 0px; padding: 0px;">create-project</strong></code></p><p style="margin-top: 15px; margin-bottom: 15px; padding: 0px 0px 0px 10px; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); color: rgb(61, 70, 77); box-sizing: border-box; border-radius: 8px; font-family: "Helvetica Neue", Helvetica, "PingFang SC", 微软雅黑, Tahoma, Arial, sans-serif; white-space: normal; background-color: rgb(255, 255, 255);">你可以使用<code style="margin: 0px; padding: 2px 4px; font-size: 14.4px; color: rgb(199, 37, 78); background-color: rgb(249, 242, 244); border-radius: 4px;"> create-project</code> 从现有的包中创建一个新的项目。</p><p style="margin-top: 15px; margin-bottom: 15px; padding: 0px 0px 0px 10px; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); color: rgb(61, 70, 77); box-sizing: border-box; border-radius: 8px; font-family: "Helvetica Neue", Helvetica, "PingFang SC", 微软雅黑, Tahoma, Arial, sans-serif; white-space: normal; background-color: rgb(255, 255, 255);">它相当于执行了 <code style="margin: 0px; padding: 2px 4px; font-size: 14.4px; color: rgb(199, 37, 78); background-color: rgb(249, 242, 244); border-radius: 4px;">git clone</code> 命令后，将这个包的依赖安装到它自己的 <code style="margin: 0px; padding: 2px 4px; font-size: 14.4px; color: rgb(199, 37, 78); background-color: rgb(249, 242, 244); border-radius: 4px;">vendor </code>目录。</p><p style="margin-top: 15px; margin-bottom: 15px; padding: 0px 0px 0px 10px; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); color: rgb(61, 70, 77); box-sizing: border-box; border-radius: 8px; font-family: "Helvetica Neue", Helvetica, "PingFang SC", 微软雅黑, Tahoma, Arial, sans-serif; white-space: normal; background-color: rgb(255, 255, 255);"><strong style="margin: 0px; padding: 0px;">此命令有几个常见的用途：</strong></p><p style="margin-top: 15px; margin-bottom: 15px; padding: 0px 0px 0px 10px; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); color: rgb(61, 70, 77); box-sizing: border-box; border-radius: 8px; font-family: "Helvetica Neue", Helvetica, "PingFang SC", 微软雅黑, Tahoma, Arial, sans-serif; white-space: normal; background-color: rgb(255, 255, 255);">你可以快速的部署你的应用。</p><p style="margin-top: 15px; margin-bottom: 15px; padding: 0px 0px 0px 10px; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); color: rgb(61, 70, 77); box-sizing: border-box; border-radius: 8px; font-family: "Helvetica Neue", Helvetica, "PingFang SC", 微软雅黑, Tahoma, Arial, sans-serif; white-space: normal; background-color: rgb(255, 255, 255);">你可以检出任何资源包，并开发它的补丁。</p><p style="margin-top: 15px; margin-bottom: 15px; padding: 0px 0px 0px 10px; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); color: rgb(61, 70, 77); box-sizing: border-box; border-radius: 8px; font-family: "Helvetica Neue", Helvetica, "PingFang SC", 微软雅黑, Tahoma, Arial, sans-serif; white-space: normal; background-color: rgb(255, 255, 255);">多人开发项目，可以用它来加快应用的初始化。</p><table cellpadding="0" cellspacing="0" class="syntaxhighlighter php" width="758"><tbody style="margin: 0px !important; padding: 0px !important; border-radius: 0px !important; background: none !important; border: 0px !important; bottom: auto !important; float: none !important; left: auto !important; line-height: 1.1em !important; outline: 0px !important; overflow: visible !important; position: static !important; right: auto !important; top: auto !important; vertical-align: baseline !important; width: auto !important; box-sizing: content-box !important; min-height: auto !important;"><tr style="margin: 0px !important; padding: 0px !important; border-radius: 0px !important; background: none !important; border: 0px !important; bottom: auto !important; float: none !important; left: auto !important; line-height: 1.1em !important; outline: 0px !important; overflow: visible !important; position: static !important; right: auto !important; top: auto !important; vertical-align: baseline !important; width: auto !important; box-sizing: content-box !important; min-height: auto !important;" class="firstRow"><td class="gutter" style="-webkit-tap-highlight-color: rgba(0, 0, 0, 0); margin: 0px !important; border-radius: 4px 0px 0px 4px !important; background: none !important; bottom: auto !important; float: none !important; left: auto !important; line-height: 1.1em !important; outline: 0px !important; overflow: visible !important; position: static !important; right: auto !important; top: auto !important; vertical-align: baseline !important; box-sizing: content-box !important; min-height: auto !important; color: rgb(175, 175, 175) !important; user-select: none !important;" width="NaN"><p class="line number1 index0 alt2" style="margin-top: 15px; margin-bottom: 15px; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); line-height: 1.5em; border-radius: 8px; font-size: 16px; color: rgb(61, 70, 77); box-sizing: border-box; padding-right: 0.5em !important; padding-left: 1em !important; border-left: 3px solid rgb(67, 90, 95) !important; white-space: pre-wrap !important; text-align: right !important;">1</p><p class="line number2 index1 alt1" style="margin-top: 15px; margin-bottom: 15px; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); line-height: 1.5em; border-radius: 8px; font-size: 16px; color: rgb(61, 70, 77); box-sizing: border-box; padding-right: 0.5em !important; padding-left: 1em !important; border-left: 3px solid rgb(67, 90, 95) !important; white-space: pre-wrap !important; text-align: right !important;">2</p></td><td class="code" style="-webkit-tap-highlight-color: rgba(0, 0, 0, 0); word-break: break-all; margin: 0px !important; border-radius: 0px !important; background: none !important; bottom: auto !important; float: none !important; left: auto !important; line-height: 1.1em !important; outline: 0px !important; overflow: visible !important; position: static !important; right: auto !important; top: auto !important; vertical-align: baseline !important; box-sizing: content-box !important; min-height: auto !important;" width="717"><p class="line number1 index0 alt2" style="margin-top: 15px; margin-bottom: 15px; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); line-height: 1.5em; border-radius: 8px; font-size: 16px; color: rgb(61, 70, 77); box-sizing: border-box; padding-right: 1em !important; padding-left: 1em !important; border-left: 3px solid rgb(67, 90, 95) !important; white-space: pre-wrap !important;"><code class="php plain" style="padding: 2px 4px; font-size: 13px; color: rgb(199, 37, 78); background-color: rgb(249, 242, 244); border-radius: 4px; font-family: Monaco, Menlo, Consolas, "Courier New", monospace; margin: 0px !important; background-image: none !important; background-position: initial !important; background-size: initial !important; background-repeat: initial !important; background-attachment: initial !important; background-origin: initial !important; background-clip: initial !important; border: 0px !important; bottom: auto !important; float: none !important; left: auto !important; line-height: 1.5em !important; outline: 0px !important; overflow: visible !important; position: static !important; right: auto !important; top: auto !important; vertical-align: baseline !important; width: auto !important; box-sizing: content-box !important; min-height: auto !important;"># 安装 Laravel 项目</code></p><p class="line number2 index1 alt1" style="margin-top: 15px; margin-bottom: 15px; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); line-height: 1.5em; border-radius: 8px; font-size: 16px; color: rgb(61, 70, 77); box-sizing: border-box; padding-right: 1em !important; padding-left: 1em !important; border-left: 3px solid rgb(67, 90, 95) !important; white-space: pre-wrap !important;"><code class="php plain" style="padding: 2px 4px; font-size: 13px; color: rgb(199, 37, 78); background-color: rgb(249, 242, 244); border-radius: 4px; font-family: Monaco, Menlo, Consolas, "Courier New", monospace; margin: 0px !important; background-image: none !important; background-position: initial !important; background-size: initial !important; background-repeat: initial !important; background-attachment: initial !important; background-origin: initial !important; background-clip: initial !important; border: 0px !important; bottom: auto !important; float: none !important; left: auto !important; line-height: 1.5em !important; outline: 0px !important; overflow: visible !important; position: static !important; right: auto !important; top: auto !important; vertical-align: baseline !important; width: auto !important; box-sizing: content-box !important; min-height: auto !important;">composer create-project --prefer-dist laravel/laravel blog 5.5.*</code></p></td></tr></tbody></table><p style="margin-top: 15px; margin-bottom: 15px; padding: 0px 0px 0px 10px; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); color: rgb(61, 70, 77); box-sizing: border-box; border-radius: 8px; font-family: "Helvetica Neue", Helvetica, "PingFang SC", 微软雅黑, Tahoma, Arial, sans-serif; white-space: normal; background-color: rgb(255, 255, 255);"><br/></p><p style="margin-top: 15px; margin-bottom: 15px; padding: 0px 0px 0px 10px; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); color: rgb(61, 70, 77); box-sizing: border-box; border-radius: 8px; font-family: "Helvetica Neue", Helvetica, "PingFang SC", 微软雅黑, Tahoma, Arial, sans-serif; white-space: normal; background-color: rgb(255, 255, 255);">如果没有指定版本号，就默认安装最新的版本。</p><p style="margin-top: 15px; margin-bottom: 15px; padding: 0px 0px 0px 10px; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); color: rgb(61, 70, 77); box-sizing: border-box; border-radius: 8px; font-family: "Helvetica Neue", Helvetica, "PingFang SC", 微软雅黑, Tahoma, Arial, sans-serif; white-space: normal; background-color: rgb(255, 255, 255);">--prefer-dist: 当有可用的包时，从 dist 安装。</p><p style="margin-top: 15px; margin-bottom: 15px; padding: 0px 0px 0px 10px; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); color: rgb(61, 70, 77); box-sizing: border-box; border-radius: 8px; font-family: "Helvetica Neue", Helvetica, "PingFang SC", 微软雅黑, Tahoma, Arial, sans-serif; white-space: normal; background-color: rgb(255, 255, 255);"><strong style="margin: 0px; padding: 0px;">phpStudy集成环境下 安装composer失败</strong></p><p style="margin-top: 15px; margin-bottom: 15px; padding: 0px 0px 0px 10px; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); color: rgb(61, 70, 77); box-sizing: border-box; border-radius: 8px; font-family: "Helvetica Neue", Helvetica, "PingFang SC", 微软雅黑, Tahoma, Arial, sans-serif; white-space: normal; background-color: rgb(255, 255, 255);">报错提示：</p><table cellpadding="0" cellspacing="0" class="syntaxhighlighter php" width="758"><tbody style="margin: 0px !important; padding: 0px !important; border-radius: 0px !important; background: none !important; border: 0px !important; bottom: auto !important; float: none !important; left: auto !important; line-height: 1.1em !important; outline: 0px !important; overflow: visible !important; position: static !important; right: auto !important; top: auto !important; vertical-align: baseline !important; width: auto !important; box-sizing: content-box !important; min-height: auto !important;"><tr style="margin: 0px !important; padding: 0px !important; border-radius: 0px !important; background: none !important; border: 0px !important; bottom: auto !important; float: none !important; left: auto !important; line-height: 1.1em !important; outline: 0px !important; overflow: visible !important; position: static !important; right: auto !important; top: auto !important; vertical-align: baseline !important; width: auto !important; box-sizing: content-box !important; min-height: auto !important;" class="firstRow"><td class="gutter" style="-webkit-tap-highlight-color: rgba(0, 0, 0, 0); margin: 0px !important; border-radius: 4px 0px 0px 4px !important; background: none !important; bottom: auto !important; float: none !important; left: auto !important; line-height: 1.1em !important; outline: 0px !important; overflow: visible !important; position: static !important; right: auto !important; top: auto !important; vertical-align: baseline !important; box-sizing: content-box !important; min-height: auto !important; color: rgb(175, 175, 175) !important; user-select: none !important;" width="NaN"><p class="line number1 index0 alt2" style="margin-top: 15px; margin-bottom: 15px; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); line-height: 1.5em; border-radius: 8px; font-size: 16px; color: rgb(61, 70, 77); box-sizing: border-box; padding-right: 0.5em !important; padding-left: 1em !important; border-left: 3px solid rgb(67, 90, 95) !important; white-space: pre-wrap !important; text-align: right !important;">1</p><p class="line number2 index1 alt1" style="margin-top: 15px; margin-bottom: 15px; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); line-height: 1.5em; border-radius: 8px; font-size: 16px; color: rgb(61, 70, 77); box-sizing: border-box; padding-right: 0.5em !important; padding-left: 1em !important; border-left: 3px solid rgb(67, 90, 95) !important; white-space: pre-wrap !important; text-align: right !important;">2</p><p class="line number3 index2 alt2" style="margin-top: 15px; margin-bottom: 15px; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); line-height: 1.5em; border-radius: 8px; font-size: 16px; color: rgb(61, 70, 77); box-sizing: border-box; padding-right: 0.5em !important; padding-left: 1em !important; border-left: 3px solid rgb(67, 90, 95) !important; white-space: pre-wrap !important; text-align: right !important;">3</p><p class="line number4 index3 alt1" style="margin-top: 15px; margin-bottom: 15px; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); line-height: 1.5em; border-radius: 8px; font-size: 16px; color: rgb(61, 70, 77); box-sizing: border-box; padding-right: 0.5em !important; padding-left: 1em !important; border-left: 3px solid rgb(67, 90, 95) !important; white-space: pre-wrap !important; text-align: right !important;">4</p></td><td class="code" style="-webkit-tap-highlight-color: rgba(0, 0, 0, 0); word-break: break-all; margin: 0px !important; border-radius: 0px !important; background: none !important; bottom: auto !important; float: none !important; left: auto !important; line-height: 1.1em !important; outline: 0px !important; overflow: visible !important; position: static !important; right: auto !important; top: auto !important; vertical-align: baseline !important; box-sizing: content-box !important; min-height: auto !important;" width="717"><p class="line number1 index0 alt2" style="margin-top: 15px; margin-bottom: 15px; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); line-height: 1.5em; border-radius: 8px; font-size: 16px; color: rgb(61, 70, 77); box-sizing: border-box; padding-right: 1em !important; padding-left: 1em !important; border-left: 3px solid rgb(67, 90, 95) !important; white-space: pre-wrap !important;"><code class="php plain" style="padding: 2px 4px; font-size: 13px; color: rgb(199, 37, 78); background-color: rgb(249, 242, 244); border-radius: 4px; font-family: Monaco, Menlo, Consolas, "Courier New", monospace; margin: 0px !important; background-image: none !important; background-position: initial !important; background-size: initial !important; background-repeat: initial !important; background-attachment: initial !important; background-origin: initial !important; background-clip: initial !important; border: 0px !important; bottom: auto !important; float: none !important; left: auto !important; line-height: 1.5em !important; outline: 0px !important; overflow: visible !important; position: static !important; right: auto !important; top: auto !important; vertical-align: baseline !important; width: auto !important; box-sizing: content-box !important; min-height: auto !important;">The </code><code class="php string" style="padding: 2px 4px; font-size: 13px; color: rgb(199, 37, 78); background-color: rgb(249, 242, 244); border-radius: 4px; font-family: Monaco, Menlo, Consolas, "Courier New", monospace; margin: 0px !important; background-image: none !important; background-position: initial !important; background-size: initial !important; background-repeat: initial !important; background-attachment: initial !important; background-origin: initial !important; background-clip: initial !important; border: 0px !important; bottom: auto !important; float: none !important; left: auto !important; line-height: 1.5em !important; outline: 0px !important; overflow: visible !important; position: static !important; right: auto !important; top: auto !important; vertical-align: baseline !important; width: auto !important; box-sizing: content-box !important; min-height: auto !important;">"https://getcomposer.org/versions"</code> <code class="php plain" style="padding: 2px 4px; font-size: 13px; color: rgb(199, 37, 78); background-color: rgb(249, 242, 244); border-radius: 4px; font-family: Monaco, Menlo, Consolas, "Courier New", monospace; margin: 0px !important; background-image: none !important; background-position: initial !important; background-size: initial !important; background-repeat: initial !important; background-attachment: initial !important; background-origin: initial !important; background-clip: initial !important; border: 0px !important; bottom: auto !important; float: none !important; left: auto !important; line-height: 1.5em !important; outline: 0px !important; overflow: visible !important; position: static !important; right: auto !important; top: auto !important; vertical-align: baseline !important; width: auto !important; box-sizing: content-box !important; min-height: auto !important;">file could not be downloaded: failed to open stream: 由于连接方在一段时间后没有正确答复或连接的主机没有反应，连接尝试失败。</code></p><p class="line number2 index1 alt1" style="margin-top: 15px; margin-bottom: 15px; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); line-height: 1.5em; border-radius: 8px; font-size: 16px; color: rgb(61, 70, 77); box-sizing: border-box; padding-right: 1em !important; padding-left: 1em !important; border-left: 3px solid rgb(67, 90, 95) !important; white-space: pre-wrap !important;"><code class="php plain" style="padding: 2px 4px; font-size: 13px; color: rgb(199, 37, 78); background-color: rgb(249, 242, 244); border-radius: 4px; font-family: Monaco, Menlo, Consolas, "Courier New", monospace; margin: 0px !important; background-image: none !important; background-position: initial !important; background-size: initial !important; background-repeat: initial !important; background-attachment: initial !important; background-origin: initial !important; background-clip: initial !important; border: 0px !important; bottom: auto !important; float: none !important; left: auto !important; line-height: 1.5em !important; outline: 0px !important; overflow: visible !important; position: static !important; right: auto !important; top: auto !important; vertical-align: baseline !important; width: auto !important; box-sizing: content-box !important; min-height: auto !important;">The </code><code class="php string" style="padding: 2px 4px; font-size: 13px; color: rgb(199, 37, 78); background-color: rgb(249, 242, 244); border-radius: 4px; font-family: Monaco, Menlo, Consolas, "Courier New", monospace; margin: 0px !important; background-image: none !important; background-position: initial !important; background-size: initial !important; background-repeat: initial !important; background-attachment: initial !important; background-origin: initial !important; background-clip: initial !important; border: 0px !important; bottom: auto !important; float: none !important; left: auto !important; line-height: 1.5em !important; outline: 0px !important; overflow: visible !important; position: static !important; right: auto !important; top: auto !important; vertical-align: baseline !important; width: auto !important; box-sizing: content-box !important; min-height: auto !important;">"https://getcomposer.org/download/1.2.0/composer.phar.sig"</code> <code class="php plain" style="padding: 2px 4px; font-size: 13px; color: rgb(199, 37, 78); background-color: rgb(249, 242, 244); border-radius: 4px; font-family: Monaco, Menlo, Consolas, "Courier New", monospace; margin: 0px !important; background-image: none !important; background-position: initial !important; background-size: initial !important; background-repeat: initial !important; background-attachment: initial !important; background-origin: initial !important; background-clip: initial !important; border: 0px !important; bottom: auto !important; float: none !important; left: auto !important; line-height: 1.5em !important; outline: 0px !important; overflow: visible !important; position: static !important; right: auto !important; top: auto !important; vertical-align: baseline !important; width: auto !important; box-sizing: content-box !important; min-height: auto !important;">file could not be downloaded: SSL: crypto enabling timeout</code></p><p class="line number3 index2 alt2" style="margin-top: 15px; margin-bottom: 15px; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); line-height: 1.5em; border-radius: 8px; font-size: 16px; color: rgb(61, 70, 77); box-sizing: border-box; padding-right: 1em !important; padding-left: 1em !important; border-left: 3px solid rgb(67, 90, 95) !important; white-space: pre-wrap !important;"><code class="php plain" style="padding: 2px 4px; font-size: 13px; color: rgb(199, 37, 78); background-color: rgb(249, 242, 244); border-radius: 4px; font-family: Monaco, Menlo, Consolas, "Courier New", monospace; margin: 0px !important; background-image: none !important; background-position: initial !important; background-size: initial !important; background-repeat: initial !important; background-attachment: initial !important; background-origin: initial !important; background-clip: initial !important; border: 0px !important; bottom: auto !important; float: none !important; left: auto !important; line-height: 1.5em !important; outline: 0px !important; overflow: visible !important; position: static !important; right: auto !important; top: auto !important; vertical-align: baseline !important; width: auto !important; box-sizing: content-box !important; min-height: auto !important;">Failed to enable crypto</code></p><p class="line number4 index3 alt1" style="margin-top: 15px; margin-bottom: 15px; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); line-height: 1.5em; border-radius: 8px; font-size: 16px; color: rgb(61, 70, 77); box-sizing: border-box; padding-right: 1em !important; padding-left: 1em !important; border-left: 3px solid rgb(67, 90, 95) !important; white-space: pre-wrap !important;"><code class="php plain" style="padding: 2px 4px; font-size: 13px; color: rgb(199, 37, 78); background-color: rgb(249, 242, 244); border-radius: 4px; font-family: Monaco, Menlo, Consolas, "Courier New", monospace; margin: 0px !important; background-image: none !important; background-position: initial !important; background-size: initial !important; background-repeat: initial !important; background-attachment: initial !important; background-origin: initial !important; background-clip: initial !important; border: 0px !important; bottom: auto !important; float: none !important; left: auto !important; line-height: 1.5em !important; outline: 0px !important; overflow: visible !important; position: static !important; right: auto !important; top: auto !important; vertical-align: baseline !important; width: auto !important; box-sizing: content-box !important; min-height: auto !important;">failed to open stream: operation failed</code></p></td></tr></tbody></table><p style="margin-top: 15px; margin-bottom: 15px; padding: 0px 0px 0px 10px; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); color: rgb(61, 70, 77); box-sizing: border-box; border-radius: 8px; font-family: "Helvetica Neue", Helvetica, "PingFang SC", 微软雅黑, Tahoma, Arial, sans-serif; white-space: normal; background-color: rgb(255, 255, 255);"><br/></p><p style="margin-top: 15px; margin-bottom: 15px; padding: 0px 0px 0px 10px; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); color: rgb(61, 70, 77); box-sizing: border-box; border-radius: 8px; font-family: "Helvetica Neue", Helvetica, "PingFang SC", 微软雅黑, Tahoma, Arial, sans-serif; white-space: normal; background-color: rgb(255, 255, 255);">1、安装composer需要开启openssl拓展 而phpstudy默认是关闭的</p><p style="margin-top: 15px; margin-bottom: 15px; padding: 0px 0px 0px 10px; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); color: rgb(61, 70, 77); box-sizing: border-box; border-radius: 8px; font-family: "Helvetica Neue", Helvetica, "PingFang SC", 微软雅黑, Tahoma, Arial, sans-serif; white-space: normal; background-color: rgb(255, 255, 255);">2、将php目录下的ssleay32.dll，libeay32.dll以及php/ext文件夹下的：php_openssl.dll 3个文件拷贝到WINDOWS\system32 文件夹下。</p><p style="margin-top: 15px; margin-bottom: 15px; padding: 0px 0px 0px 10px; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); color: rgb(61, 70, 77); box-sizing: border-box; border-radius: 8px; font-family: "Helvetica Neue", Helvetica, "PingFang SC", 微软雅黑, Tahoma, Arial, sans-serif; white-space: normal; background-color: rgb(255, 255, 255);">3、openssl需要CA证书 phpstudy也是没有的</p><p style="margin-top: 15px; margin-bottom: 15px; padding: 0px 0px 0px 10px; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); color: rgb(61, 70, 77); box-sizing: border-box; border-radius: 8px; font-family: "Helvetica Neue", Helvetica, "PingFang SC", 微软雅黑, Tahoma, Arial, sans-serif; white-space: normal; background-color: rgb(255, 255, 255);">CA证书下载地址：</p><blockquote style="margin: 0.8em 0px; padding: 10.5px 21px; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); background-color: rgb(245, 245, 245); border-left: 4px solid rgb(204, 204, 204); color: rgb(85, 85, 85); font-size: 14px; font-family: "Helvetica Neue", Helvetica, "PingFang SC", 微软雅黑, Tahoma, Arial, sans-serif; white-space: normal;"><p style="margin-top: 15px; margin-bottom: 15px; padding: 0px 0px 0px 10px; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); color: rgb(61, 70, 77); font-size: 16px; box-sizing: border-box; border-radius: 8px;">http://curl.haxx.se/docs/caextract.html</p></blockquote><p style="margin-top: 15px; margin-bottom: 15px; padding: 0px 0px 0px 10px; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); color: rgb(61, 70, 77); box-sizing: border-box; border-radius: 8px; font-family: "Helvetica Neue", Helvetica, "PingFang SC", 微软雅黑, Tahoma, Arial, sans-serif; white-space: normal; background-color: rgb(255, 255, 255);">选中之后单击右键选择另存为</p><p style="margin-top: 15px; margin-bottom: 15px; padding: 0px 0px 0px 10px; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); color: rgb(61, 70, 77); box-sizing: border-box; border-radius: 8px; font-family: "Helvetica Neue", Helvetica, "PingFang SC", 微软雅黑, Tahoma, Arial, sans-serif; white-space: normal; background-color: rgb(255, 255, 255);">下载成功之后放到tmp文件夹下面</p><p style="margin-top: 15px; margin-bottom: 15px; padding: 0px 0px 0px 10px; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); color: rgb(61, 70, 77); box-sizing: border-box; border-radius: 8px; font-family: "Helvetica Neue", Helvetica, "PingFang SC", 微软雅黑, Tahoma, Arial, sans-serif; white-space: normal; background-color: rgb(255, 255, 255);">4、然后修改php.ini文件</p><table cellpadding="0" cellspacing="0" class="syntaxhighlighter php" width="758"><tbody style="margin: 0px !important; padding: 0px !important; border-radius: 0px !important; background: none !important; border: 0px !important; bottom: auto !important; float: none !important; left: auto !important; line-height: 1.1em !important; outline: 0px !important; overflow: visible !important; position: static !important; right: auto !important; top: auto !important; vertical-align: baseline !important; width: auto !important; box-sizing: content-box !important; min-height: auto !important;"><tr style="margin: 0px !important; padding: 0px !important; border-radius: 0px !important; background: none !important; border: 0px !important; bottom: auto !important; float: none !important; left: auto !important; line-height: 1.1em !important; outline: 0px !important; overflow: visible !important; position: static !important; right: auto !important; top: auto !important; vertical-align: baseline !important; width: auto !important; box-sizing: content-box !important; min-height: auto !important;" class="firstRow"><td class="gutter" style="-webkit-tap-highlight-color: rgba(0, 0, 0, 0); margin: 0px !important; border-radius: 4px 0px 0px 4px !important; background: none !important; bottom: auto !important; float: none !important; left: auto !important; line-height: 1.1em !important; outline: 0px !important; overflow: visible !important; position: static !important; right: auto !important; top: auto !important; vertical-align: baseline !important; box-sizing: content-box !important; min-height: auto !important; color: rgb(175, 175, 175) !important; user-select: none !important;" width="NaN"><p class="line number1 index0 alt2" style="margin-top: 15px; margin-bottom: 15px; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); line-height: 1.5em; border-radius: 8px; font-size: 16px; color: rgb(61, 70, 77); box-sizing: border-box; padding-right: 0.5em !important; padding-left: 1em !important; border-left: 3px solid rgb(67, 90, 95) !important; white-space: pre-wrap !important; text-align: right !important;">1</p></td><td class="code" style="-webkit-tap-highlight-color: rgba(0, 0, 0, 0); word-break: break-all; margin: 0px !important; border-radius: 0px !important; background: none !important; bottom: auto !important; float: none !important; left: auto !important; line-height: 1.1em !important; outline: 0px !important; overflow: visible !important; position: static !important; right: auto !important; top: auto !important; vertical-align: baseline !important; box-sizing: content-box !important; min-height: auto !important;" width="717"><p class="line number1 index0 alt2" style="margin-top: 15px; margin-bottom: 15px; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); line-height: 1.5em; border-radius: 8px; font-size: 16px; color: rgb(61, 70, 77); box-sizing: border-box; padding-right: 1em !important; padding-left: 1em !important; border-left: 3px solid rgb(67, 90, 95) !important; white-space: pre-wrap !important;"><code class="php plain" style="padding: 2px 4px; font-size: 13px; color: rgb(199, 37, 78); background-color: rgb(249, 242, 244); border-radius: 4px; font-family: Monaco, Menlo, Consolas, "Courier New", monospace; margin: 0px !important; background-image: none !important; background-position: initial !important; background-size: initial !important; background-repeat: initial !important; background-attachment: initial !important; background-origin: initial !important; background-clip: initial !important; border: 0px !important; bottom: auto !important; float: none !important; left: auto !important; line-height: 1.5em !important; outline: 0px !important; overflow: visible !important; position: static !important; right: auto !important; top: auto !important; vertical-align: baseline !important; width: auto !important; box-sizing: content-box !important; min-height: auto !important;">openssl.cafile = </code><code class="php string" style="padding: 2px 4px; font-size: 13px; color: rgb(199, 37, 78); background-color: rgb(249, 242, 244); border-radius: 4px; font-family: Monaco, Menlo, Consolas, "Courier New", monospace; margin: 0px !important; background-image: none !important; background-position: initial !important; background-size: initial !important; background-repeat: initial !important; background-attachment: initial !important; background-origin: initial !important; background-clip: initial !important; border: 0px !important; bottom: auto !important; float: none !important; left: auto !important; line-height: 1.5em !important; outline: 0px !important; overflow: visible !important; position: static !important; right: auto !important; top: auto !important; vertical-align: baseline !important; width: auto !important; box-sizing: content-box !important; min-height: auto !important;">"D:\phpStudy\tmp\cacert.pem"</code></p></td></tr></tbody></table><p style="margin-top: 15px; margin-bottom: 15px; padding: 0px 0px 0px 10px; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); color: rgb(61, 70, 77); box-sizing: border-box; border-radius: 8px; font-family: "Helvetica Neue", Helvetica, "PingFang SC", 微软雅黑, Tahoma, Arial, sans-serif; white-space: normal; background-color: rgb(255, 255, 255);"><br/></p><p style="margin-top: 15px; margin-bottom: 15px; padding: 0px 0px 0px 10px; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); color: rgb(61, 70, 77); box-sizing: border-box; border-radius: 8px; font-family: "Helvetica Neue", Helvetica, "PingFang SC", 微软雅黑, Tahoma, Arial, sans-serif; white-space: normal; background-color: rgb(255, 255, 255);">5、重启phpStudy就可以了报错提示：</p><table cellpadding="0" cellspacing="0" class="syntaxhighlighter php" width="758"><tbody style="margin: 0px !important; padding: 0px !important; border-radius: 0px !important; background: none !important; border: 0px !important; bottom: auto !important; float: none !important; left: auto !important; line-height: 1.1em !important; outline: 0px !important; overflow: visible !important; position: static !important; right: auto !important; top: auto !important; vertical-align: baseline !important; width: auto !important; box-sizing: content-box !important; min-height: auto !important;"><tr style="margin: 0px !important; padding: 0px !important; border-radius: 0px !important; background: none !important; border: 0px !important; bottom: auto !important; float: none !important; left: auto !important; line-height: 1.1em !important; outline: 0px !important; overflow: visible !important; position: static !important; right: auto !important; top: auto !important; vertical-align: baseline !important; width: auto !important; box-sizing: content-box !important; min-height: auto !important;" class="firstRow"><td class="gutter" style="-webkit-tap-highlight-color: rgba(0, 0, 0, 0); margin: 0px !important; border-radius: 4px 0px 0px 4px !important; background: none !important; bottom: auto !important; float: none !important; left: auto !important; line-height: 1.1em !important; outline: 0px !important; overflow: visible !important; position: static !important; right: auto !important; top: auto !important; vertical-align: baseline !important; box-sizing: content-box !important; min-height: auto !important; color: rgb(175, 175, 175) !important; user-select: none !important;" width="NaN"><p class="line number1 index0 alt2" style="margin-top: 15px; margin-bottom: 15px; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); line-height: 1.5em; border-radius: 8px; font-size: 16px; color: rgb(61, 70, 77); box-sizing: border-box; padding-right: 0.5em !important; padding-left: 1em !important; border-left: 3px solid rgb(67, 90, 95) !important; white-space: pre-wrap !important; text-align: right !important;">1</p></td><td class="code" style="-webkit-tap-highlight-color: rgba(0, 0, 0, 0); word-break: break-all; margin: 0px !important; border-radius: 0px !important; background: none !important; bottom: auto !important; float: none !important; left: auto !important; line-height: 1.1em !important; outline: 0px !important; overflow: visible !important; position: static !important; right: auto !important; top: auto !important; vertical-align: baseline !important; box-sizing: content-box !important; min-height: auto !important;" width="717"><p class="line number1 index0 alt2" style="margin-top: 15px; margin-bottom: 15px; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); line-height: 1.5em; border-radius: 8px; font-size: 16px; color: rgb(61, 70, 77); box-sizing: border-box; padding-right: 1em !important; padding-left: 1em !important; border-left: 3px solid rgb(67, 90, 95) !important; white-space: pre-wrap !important;"><code class="php plain" style="padding: 2px 4px; font-size: 13px; color: rgb(199, 37, 78); background-color: rgb(249, 242, 244); border-radius: 4px; font-family: Monaco, Menlo, Consolas, "Courier New", monospace; margin: 0px !important; background-image: none !important; background-position: initial !important; background-size: initial !important; background-repeat: initial !important; background-attachment: initial !important; background-origin: initial !important; background-clip: initial !important; border: 0px !important; bottom: auto !important; float: none !important; left: auto !important; line-height: 1.5em !important; outline: 0px !important; overflow: visible !important; position: static !important; right: auto !important; top: auto !important; vertical-align: baseline !important; width: auto !important; box-sizing: content-box !important; min-height: auto !important;">failed to open stream: HTTP request failed!</code></p></td></tr></tbody></table><p style="margin-top: 15px; margin-bottom: 15px; padding: 0px 0px 0px 10px; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); color: rgb(61, 70, 77); box-sizing: border-box; border-radius: 8px; font-family: "Helvetica Neue", Helvetica, "PingFang SC", 微软雅黑, Tahoma, Arial, sans-serif; white-space: normal; background-color: rgb(255, 255, 255);"><br/></p><p style="margin-top: 15px; margin-bottom: 15px; padding: 0px 0px 0px 10px; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); color: rgb(61, 70, 77); box-sizing: border-box; border-radius: 8px; font-family: "Helvetica Neue", Helvetica, "PingFang SC", 微软雅黑, Tahoma, Arial, sans-serif; white-space: normal; background-color: rgb(255, 255, 255);">1、检查一下php的curl拓展是否开启</p><p style="margin-top: 15px; margin-bottom: 15px; padding: 0px 0px 0px 10px; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); color: rgb(61, 70, 77); box-sizing: border-box; border-radius: 8px; font-family: "Helvetica Neue", Helvetica, "PingFang SC", 微软雅黑, Tahoma, Arial, sans-serif; white-space: normal; background-color: rgb(255, 255, 255);">2、检查这两个配置是否开启。</p><table cellpadding="0" cellspacing="0" class="syntaxhighlighter php" width="758"><tbody style="margin: 0px !important; padding: 0px !important; border-radius: 0px !important; background: none !important; border: 0px !important; bottom: auto !important; float: none !important; left: auto !important; line-height: 1.1em !important; outline: 0px !important; overflow: visible !important; position: static !important; right: auto !important; top: auto !important; vertical-align: baseline !important; width: auto !important; box-sizing: content-box !important; min-height: auto !important;"><tr style="margin: 0px !important; padding: 0px !important; border-radius: 0px !important; background: none !important; border: 0px !important; bottom: auto !important; float: none !important; left: auto !important; line-height: 1.1em !important; outline: 0px !important; overflow: visible !important; position: static !important; right: auto !important; top: auto !important; vertical-align: baseline !important; width: auto !important; box-sizing: content-box !important; min-height: auto !important;" class="firstRow"><td class="gutter" style="-webkit-tap-highlight-color: rgba(0, 0, 0, 0); margin: 0px !important; border-radius: 4px 0px 0px 4px !important; background: none !important; bottom: auto !important; float: none !important; left: auto !important; line-height: 1.1em !important; outline: 0px !important; overflow: visible !important; position: static !important; right: auto !important; top: auto !important; vertical-align: baseline !important; box-sizing: content-box !important; min-height: auto !important; color: rgb(175, 175, 175) !important; user-select: none !important;" width="NaN"><p class="line number1 index0 alt2" style="margin-top: 15px; margin-bottom: 15px; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); line-height: 1.5em; border-radius: 8px; font-size: 16px; color: rgb(61, 70, 77); box-sizing: border-box; padding-right: 0.5em !important; padding-left: 1em !important; border-left: 3px solid rgb(67, 90, 95) !important; white-space: pre-wrap !important; text-align: right !important;">1</p><p class="line number2 index1 alt1" style="margin-top: 15px; margin-bottom: 15px; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); line-height: 1.5em; border-radius: 8px; font-size: 16px; color: rgb(61, 70, 77); box-sizing: border-box; padding-right: 0.5em !important; padding-left: 1em !important; border-left: 3px solid rgb(67, 90, 95) !important; white-space: pre-wrap !important; text-align: right !important;">2</p></td><td class="code" style="-webkit-tap-highlight-color: rgba(0, 0, 0, 0); word-break: break-all; margin: 0px !important; border-radius: 0px !important; background: none !important; bottom: auto !important; float: none !important; left: auto !important; line-height: 1.1em !important; outline: 0px !important; overflow: visible !important; position: static !important; right: auto !important; top: auto !important; vertical-align: baseline !important; box-sizing: content-box !important; min-height: auto !important;" width="717"><p class="line number1 index0 alt2" style="margin-top: 15px; margin-bottom: 15px; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); line-height: 1.5em; border-radius: 8px; font-size: 16px; color: rgb(61, 70, 77); box-sizing: border-box; padding-right: 1em !important; padding-left: 1em !important; border-left: 3px solid rgb(67, 90, 95) !important; white-space: pre-wrap !important;"><code class="php plain" style="padding: 2px 4px; font-size: 13px; color: rgb(199, 37, 78); background-color: rgb(249, 242, 244); border-radius: 4px; font-family: Monaco, Menlo, Consolas, "Courier New", monospace; margin: 0px !important; background-image: none !important; background-position: initial !important; background-size: initial !important; background-repeat: initial !important; background-attachment: initial !important; background-origin: initial !important; background-clip: initial !important; border: 0px !important; bottom: auto !important; float: none !important; left: auto !important; line-height: 1.5em !important; outline: 0px !important; overflow: visible !important; position: static !important; right: auto !important; top: auto !important; vertical-align: baseline !important; width: auto !important; box-sizing: content-box !important; min-height: auto !important;">allow_url_fopen = On</code></p><p class="line number2 index1 alt1" style="margin-top: 15px; margin-bottom: 15px; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); line-height: 1.5em; border-radius: 8px; font-size: 16px; color: rgb(61, 70, 77); box-sizing: border-box; padding-right: 1em !important; padding-left: 1em !important; border-left: 3px solid rgb(67, 90, 95) !important; white-space: pre-wrap !important;"><code class="php plain" style="padding: 2px 4px; font-size: 13px; color: rgb(199, 37, 78); background-color: rgb(249, 242, 244); border-radius: 4px; font-family: Monaco, Menlo, Consolas, "Courier New", monospace; margin: 0px !important; background-image: none !important; background-position: initial !important; background-size: initial !important; background-repeat: initial !important; background-attachment: initial !important; background-origin: initial !important; background-clip: initial !important; border: 0px !important; bottom: auto !important; float: none !important; left: auto !important; line-height: 1.5em !important; outline: 0px !important; overflow: visible !important; position: static !important; right: auto !important; top: auto !important; vertical-align: baseline !important; width: auto !important; box-sizing: content-box !important; min-height: auto !important;">user_agent=</code><code class="php string" style="padding: 2px 4px; font-size: 13px; color: rgb(199, 37, 78); background-color: rgb(249, 242, 244); border-radius: 4px; font-family: Monaco, Menlo, Consolas, "Courier New", monospace; margin: 0px !important; background-image: none !important; background-position: initial !important; background-size: initial !important; background-repeat: initial !important; background-attachment: initial !important; background-origin: initial !important; background-clip: initial !important; border: 0px !important; bottom: auto !important; float: none !important; left: auto !important; line-height: 1.5em !important; outline: 0px !important; overflow: visible !important; position: static !important; right: auto !important; top: auto !important; vertical-align: baseline !important; width: auto !important; box-sizing: content-box !important; min-height: auto !important;">"PHP"</code></p></td></tr></tbody></table><p style="margin-top: 15px; margin-bottom: 15px; padding: 0px 0px 0px 10px; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); color: rgb(61, 70, 77); box-sizing: border-box; border-radius: 8px; font-family: "Helvetica Neue", Helvetica, "PingFang SC", 微软雅黑, Tahoma, Arial, sans-serif; white-space: normal; background-color: rgb(255, 255, 255);"><br/></p><p style="margin-top: 15px; margin-bottom: 15px; padding: 0px 0px 0px 10px; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); color: rgb(61, 70, 77); box-sizing: border-box; border-radius: 8px; font-family: "Helvetica Neue", Helvetica, "PingFang SC", 微软雅黑, Tahoma, Arial, sans-serif; white-space: normal; background-color: rgb(255, 255, 255);">也可以这样配置 <code style="margin: 0px; padding: 2px 4px; font-size: 14.4px; color: rgb(199, 37, 78); background-color: rgb(249, 242, 244); border-radius: 4px;">user_agent="Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.0)"）</code></p><p style="margin-top: 15px; margin-bottom: 15px; padding: 0px 0px 0px 10px; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); color: rgb(61, 70, 77); box-sizing: border-box; border-radius: 8px; font-family: "Helvetica Neue", Helvetica, "PingFang SC", 微软雅黑, Tahoma, Arial, sans-serif; white-space: normal; background-color: rgb(255, 255, 255);">模拟浏览器访问也是一个不错的选择</p><p style="margin-top: 15px; margin-bottom: 15px; padding: 0px 0px 0px 10px; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); color: rgb(61, 70, 77); box-sizing: border-box; border-radius: 8px; font-family: "Helvetica Neue", Helvetica, "PingFang SC", 微软雅黑, Tahoma, Arial, sans-serif; white-space: normal; background-color: rgb(255, 255, 255);">3、开启之后重启重启phpStudy就可以了</p><p style="margin-top: 15px; margin-bottom: 15px; padding: 0px 0px 0px 10px; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); color: rgb(61, 70, 77); box-sizing: border-box; border-radius: 8px; font-family: "Helvetica Neue", Helvetica, "PingFang SC", 微软雅黑, Tahoma, Arial, sans-serif; white-space: normal; background-color: rgb(255, 255, 255);"><br/></p><p style="margin-top: 15px; margin-bottom: 15px; padding: 0px 0px 0px 10px; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); color: rgb(61, 70, 77); box-sizing: border-box; border-radius: 8px; font-family: "Helvetica Neue", Helvetica, "PingFang SC", 微软雅黑, Tahoma, Arial, sans-serif; white-space: normal; background-color: rgb(255, 255, 255);">PS: openssl.cafile 配置选项, 是 PHP 5.6.0. 以上的版本才支持的</p><p style="margin-top: 15px; margin-bottom: 15px; padding: 0px 0px 0px 10px; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); color: rgb(61, 70, 77); box-sizing: border-box; border-radius: 8px; font-family: "Helvetica Neue", Helvetica, "PingFang SC", 微软雅黑, Tahoma, Arial, sans-serif; white-space: normal; background-color: rgb(255, 255, 255);">更多<strong style="margin: 0px; padding: 0px;">composer</strong>相关技术文章，请访问<strong style="margin: 0px; padding: 0px;">composer</strong>栏目：<a href="https://www.php.cn/tool/composer/" _src="https://www.php.cn/tool/composer/" style="margin: 0px; padding: 0px; color: rgb(61, 167, 13); text-decoration-line: none !important;">https://www.php.cn/tool/composer/</a></p><p style="margin-top: 15px; margin-bottom: 15px; padding: 0px 0px 0px 10px; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); color: rgb(61, 70, 77); box-sizing: border-box; border-radius: 8px; font-family: "Helvetica Neue", Helvetica, "PingFang SC", 微软雅黑, Tahoma, Arial, sans-serif; white-space: normal; background-color: rgb(255, 255, 255);">以上就是Composer依赖管理（PHP利器）的详细内容，更多请关注php中文网其它相关文章！</p><p><br/></p>
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