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<p style="box-sizing: border-box; outline: 0px; margin-top: 0px; margin-bottom: 16px; padding: 0px; font-size: 18px; color: rgb(77, 77, 77); line-height: 26px; overflow-wrap: break-word; font-family: -apple-system, "SF UI Text", Arial, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "WenQuanYi Micro Hei", sans-serif; font-variant-ligatures: common-ligatures; white-space: normal; background-color: rgb(255, 255, 255);">FIG制定的PHP规范，简称PSR，是PHP开发的事实标准。</p><p style="box-sizing: border-box; outline: 0px; margin-top: 0px; margin-bottom: 16px; padding: 0px; font-size: 18px; color: rgb(77, 77, 77); line-height: 26px; overflow-wrap: break-word; font-family: -apple-system, "SF UI Text", Arial, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "WenQuanYi Micro Hei", sans-serif; font-variant-ligatures: common-ligatures; white-space: normal; background-color: rgb(255, 255, 255);">PSR原本有四个规范，分别是：</p><pre class="prettyprint" style="box-sizing: border-box; outline: 0px; margin-top: 0px; margin-bottom: 24px; padding: 8px 16px 6px 56px; position: relative; font-family: "Source Code Pro", "DejaVu Sans Mono", "Ubuntu Mono", "Anonymous Pro", "Droid Sans Mono", Menlo, Monaco, Consolas, Inconsolata, Courier, monospace, "PingFang SC", "Microsoft YaHei", sans-serif; font-size: 14px; overflow: auto hidden; border: none; line-height: 22px; overflow-wrap: break-word; background-color: rgb(40, 44, 52); font-variant-ligatures: common-ligatures;">PSR-0 自动加载 PSR-1 基本代码规范 PSR-2 代码样式 PSR-3 日志接口1234567</pre><p style="box-sizing: border-box; outline: 0px; margin-top: 0px; margin-bottom: 16px; padding: 0px; font-size: 18px; color: rgb(77, 77, 77); line-height: 26px; overflow-wrap: break-word; font-family: -apple-system, "SF UI Text", Arial, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "WenQuanYi Micro Hei", sans-serif; font-variant-ligatures: common-ligatures; white-space: normal; background-color: rgb(255, 255, 255);">2013年底，新出了第5个规范——PSR-4。</p><p style="box-sizing: border-box; outline: 0px; margin-top: 0px; margin-bottom: 16px; padding: 0px; font-size: 18px; color: rgb(77, 77, 77); line-height: 26px; overflow-wrap: break-word; font-family: -apple-system, "SF UI Text", Arial, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "WenQuanYi Micro Hei", sans-serif; font-variant-ligatures: common-ligatures; white-space: normal; background-color: rgb(255, 255, 255);">PSR-4规范了如何指定文件路径从而自动加载类定义，同时规范了自动加载文件的位置。这个乍一看和PSR-0重复了，实际上，在功能上确实有所重复。区别在于PSR-4的规范比较干净，去除了兼容PHP 5.3以前版本的内容，有一点PSR-0升级版的感觉。当然，PSR-4也不是要完全替代PSR-0，而是在必要的时候补充PSR-0——当然，如果你愿意，PSR-4也可以替代PSR-0。PSR-4可以和包括PSR-0在内的其他自动加载机制共同使用。</p><p style="box-sizing: border-box; outline: 0px; margin-top: 0px; margin-bottom: 16px; padding: 0px; font-size: 18px; color: rgb(77, 77, 77); line-height: 26px; overflow-wrap: break-word; font-family: -apple-system, "SF UI Text", Arial, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "WenQuanYi Micro Hei", sans-serif; font-variant-ligatures: common-ligatures; white-space: normal; background-color: rgb(255, 255, 255);">PSR-4和PSR-0最大的区别是对下划线（underscore)的定义不同。PSR-4中，在类名中使用下划线没有任何特殊含义。而PSR-0则规定类名中的下划线_会被转化成目录分隔符。</p><p style="box-sizing: border-box; outline: 0px; margin-top: 0px; margin-bottom: 16px; padding: 0px; font-size: 18px; color: rgb(77, 77, 77); line-height: 26px; overflow-wrap: break-word; font-family: -apple-system, "SF UI Text", Arial, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "WenQuanYi Micro Hei", sans-serif; font-variant-ligatures: common-ligatures; white-space: normal; background-color: rgb(255, 255, 255);">具体区别</p><p style="box-sizing: border-box; outline: 0px; margin-top: 0px; margin-bottom: 16px; padding: 0px; font-size: 18px; color: rgb(77, 77, 77); line-height: 26px; overflow-wrap: break-word; font-family: -apple-system, "SF UI Text", Arial, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "WenQuanYi Micro Hei", sans-serif; font-variant-ligatures: common-ligatures; white-space: normal; background-color: rgb(255, 255, 255);">composer同时兼容这两种规范, 但是这两者有什么区别呢?</p><p style="box-sizing: border-box; outline: 0px; margin-top: 0px; margin-bottom: 16px; padding: 0px; font-size: 18px; color: rgb(77, 77, 77); line-height: 26px; overflow-wrap: break-word; font-family: -apple-system, "SF UI Text", Arial, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "WenQuanYi Micro Hei", sans-serif; font-variant-ligatures: common-ligatures; white-space: normal; background-color: rgb(255, 255, 255);">比如说在composer.json中我这样定义了:</p><pre class="prettyprint" style="box-sizing: border-box; outline: 0px; margin-top: 0px; margin-bottom: 24px; padding: 8px 16px 6px 56px; position: relative; font-family: "Source Code Pro", "DejaVu Sans Mono", "Ubuntu Mono", "Anonymous Pro", "Droid Sans Mono", Menlo, Monaco, Consolas, Inconsolata, Courier, monospace, "PingFang SC", "Microsoft YaHei", sans-serif; font-size: 14px; overflow: auto hidden; border: none; line-height: 22px; overflow-wrap: break-word; background-color: rgb(40, 44, 52); font-variant-ligatures: common-ligatures;">{ "autoload": { "psr-4": { "church\\": "./src/" } }}1234567</pre><p style="box-sizing: border-box; outline: 0px; margin-top: 0px; margin-bottom: 16px; padding: 0px; font-size: 18px; color: rgb(77, 77, 77); line-height: 26px; overflow-wrap: break-word; font-family: -apple-system, "SF UI Text", Arial, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "WenQuanYi Micro Hei", sans-serif; font-variant-ligatures: common-ligatures; white-space: normal; background-color: rgb(255, 255, 255);">那我使用 use church\testClass, 那就对应src/testClass.php.</p><p style="box-sizing: border-box; outline: 0px; margin-top: 0px; margin-bottom: 16px; padding: 0px; font-size: 18px; color: rgb(77, 77, 77); line-height: 26px; overflow-wrap: break-word; font-family: -apple-system, "SF UI Text", Arial, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "WenQuanYi Micro Hei", sans-serif; font-variant-ligatures: common-ligatures; white-space: normal; background-color: rgb(255, 255, 255);">使用use church\test\testClass, 那就对应src/test/testClass.php.</p><p style="box-sizing: border-box; outline: 0px; margin-top: 0px; margin-bottom: 16px; padding: 0px; font-size: 18px; color: rgb(77, 77, 77); line-height: 26px; overflow-wrap: break-word; font-family: -apple-system, "SF UI Text", Arial, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "WenQuanYi Micro Hei", sans-serif; font-variant-ligatures: common-ligatures; white-space: normal; background-color: rgb(255, 255, 255);">上面是psr-4的对应规则. 那psr-0是什么样的呢?</p><pre class="prettyprint" style="box-sizing: border-box; outline: 0px; margin-top: 0px; margin-bottom: 24px; padding: 8px 16px 6px 56px; position: relative; font-family: "Source Code Pro", "DejaVu Sans Mono", "Ubuntu Mono", "Anonymous Pro", "Droid Sans Mono", Menlo, Monaco, Consolas, Inconsolata, Courier, monospace, "PingFang SC", "Microsoft YaHei", sans-serif; font-size: 14px; overflow: auto hidden; border: none; line-height: 22px; overflow-wrap: break-word; background-color: rgb(40, 44, 52); font-variant-ligatures: common-ligatures;">{ "autoload": { "psr-0": { "church\\": "./src/" } }}1234567</pre><p style="box-sizing: border-box; outline: 0px; margin-top: 0px; margin-bottom: 16px; padding: 0px; font-size: 18px; color: rgb(77, 77, 77); line-height: 26px; overflow-wrap: break-word; font-family: -apple-system, "SF UI Text", Arial, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "WenQuanYi Micro Hei", sans-serif; font-variant-ligatures: common-ligatures; white-space: normal; background-color: rgb(255, 255, 255);">使用use church\testClass, 那就对应src/church/testClass.php.<br style="box-sizing: border-box; outline: 0px; overflow-wrap: break-word;"/>使用use church\test\testClass, 那就对应src/church/test/testClass.php.</p><p style="box-sizing: border-box; outline: 0px; margin-top: 0px; margin-bottom: 16px; padding: 0px; font-size: 18px; color: rgb(77, 77, 77); line-height: 26px; overflow-wrap: break-word; font-family: -apple-system, "SF UI Text", Arial, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "WenQuanYi Micro Hei", sans-serif; font-variant-ligatures: common-ligatures; white-space: normal; background-color: rgb(255, 255, 255);">很明显psr-0的目录路径更深. 因此推荐psr-4自动加载规范。</p><p style="box-sizing: border-box; outline: 0px; margin-top: 0px; margin-bottom: 16px; padding: 0px; font-size: 18px; color: rgb(77, 77, 77); line-height: 26px; overflow-wrap: break-word; font-family: -apple-system, "SF UI Text", Arial, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "WenQuanYi Micro Hei", sans-serif; font-variant-ligatures: common-ligatures; white-space: normal; background-color: rgb(255, 255, 255);">闭包实现</p><h1 style="box-sizing: border-box; outline: 0px; margin: 8px 0px 16px; padding: 0px; font-family: "PingFang SC", "Microsoft YaHei", SimHei, Arial, SimSun; font-size: 28px; color: rgb(79, 79, 79); line-height: 36px; overflow-wrap: break-word; font-variant-ligatures: common-ligatures; white-space: normal; background-color: rgb(255, 255, 255);"><a style="box-sizing: border-box; outline: none; margin: 0px; padding: 0px; font-weight: normal; cursor: pointer; background-color: transparent; color: rgb(78, 161, 219); overflow-wrap: break-word;" name="t0"></a><a style="box-sizing: border-box; outline: none; margin: 0px; padding: 0px; font-weight: normal; cursor: pointer; background-color: transparent; color: rgb(78, 161, 219); overflow-wrap: break-word;" name="t0"></a><a id="PSR4__54" style="box-sizing: border-box; outline: none; margin: 0px; padding: 0px; font-weight: normal; cursor: pointer; background-color: transparent; color: rgb(78, 161, 219); overflow-wrap: break-word;"></a>PSR-4 相关示例</h1><p style="box-sizing: border-box; outline: 0px; margin-top: 0px; margin-bottom: 16px; padding: 0px; font-size: 18px; color: rgb(77, 77, 77); line-height: 26px; overflow-wrap: break-word; font-family: -apple-system, "SF UI Text", Arial, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "WenQuanYi Micro Hei", sans-serif; font-variant-ligatures: common-ligatures; white-space: normal; background-color: rgb(255, 255, 255);">以下是 PSR-4 规范的相关示例代码：</p><h2 style="box-sizing: border-box; outline: 0px; margin: 8px 0px 16px; padding: 0px; font-family: "PingFang SC", "Microsoft YaHei", SimHei, Arial, SimSun; font-size: 24px; color: rgb(79, 79, 79); line-height: 32px; overflow-wrap: break-word; font-variant-ligatures: common-ligatures; white-space: normal; background-color: rgb(255, 255, 255);"><a style="box-sizing: border-box; outline: none; margin: 0px; padding: 0px; font-weight: normal; cursor: pointer; background-color: transparent; color: rgb(78, 161, 219); overflow-wrap: break-word;" name="t1"></a><a style="box-sizing: border-box; outline: none; margin: 0px; padding: 0px; font-weight: normal; cursor: pointer; background-color: transparent; color: rgb(78, 161, 219); overflow-wrap: break-word;" name="t1"></a><a id="_59" style="box-sizing: border-box; outline: none; margin: 0px; padding: 0px; font-weight: normal; cursor: pointer; background-color: transparent; color: rgb(78, 161, 219); overflow-wrap: break-word;"></a>闭包的实现示例</h2><pre class="prettyprint" style="box-sizing: border-box; outline: 0px; margin-top: 0px; margin-bottom: 24px; padding: 8px 16px 6px 56px; position: relative; font-family: "Source Code Pro", "DejaVu Sans Mono", "Ubuntu Mono", "Anonymous Pro", "Droid Sans Mono", Menlo, Monaco, Consolas, Inconsolata, Courier, monospace, "PingFang SC", "Microsoft YaHei", sans-serif; font-size: 14px; overflow: auto hidden; border: none; line-height: 22px; overflow-wrap: break-word; background-color: rgb(40, 44, 52); font-variant-ligatures: common-ligatures;"><?php/** * 一个具体项目的实例 * * 当使用 SPL 注册此自动加载器后，执行以下语句将从 * /path/to/project/src/Baz/Qux.php 载入 \Foo\Bar\Baz\Qux 类： * * new \Foo\Bar\Baz\Qux; * * @param string $class 完整的类名 * @return void */spl_autoload_register(function ($class) { // 具体项目命名空间前缀 $prefix = 'Foo\\Bar\\'; // 命名空间前缀的基目录 $base_dir = __DIR__ . '/src/'; // 判断类名是否具有本命名空间前缀 $len = strlen($prefix); if (strncmp($prefix, $class, $len) !== 0) { // 不含本命名空间前缀，退出本自动载入器 return; } // 截取相应类名 $relative_class = substr($class, $len); // 将命名空间前缀替作为文件基目录，然后 // 将类名中的命名空间分隔符替换成文件分隔符, // 最后添加 .php 后缀 $file = $base_dir . str_replace('\\', '/', $relative_class) . '.php'; // 如果以上文件存在，则将其载入 if (file_exists($file)) { require $file; }});12345678910111213141516171819202122232425262728293031323334353637383940</pre><h2 style="box-sizing: border-box; outline: 0px; margin: 8px 0px 16px; padding: 0px; font-family: "PingFang SC", "Microsoft YaHei", SimHei, Arial, SimSun; font-size: 24px; color: rgb(79, 79, 79); line-height: 32px; overflow-wrap: break-word; font-variant-ligatures: common-ligatures; white-space: normal; background-color: rgb(255, 255, 255);"><a style="box-sizing: border-box; outline: none; margin: 0px; padding: 0px; font-weight: normal; cursor: pointer; background-color: transparent; color: rgb(78, 161, 219); overflow-wrap: break-word;" name="t2"></a><a style="box-sizing: border-box; outline: none; margin: 0px; padding: 0px; font-weight: normal; cursor: pointer; background-color: transparent; color: rgb(78, 161, 219); overflow-wrap: break-word;" name="t2"></a><a id="_105" style="box-sizing: border-box; outline: none; margin: 0px; padding: 0px; font-weight: normal; cursor: pointer; background-color: transparent; color: rgb(78, 161, 219); overflow-wrap: break-word;"></a>类的实现示例</h2><p style="box-sizing: border-box; outline: 0px; margin-top: 0px; margin-bottom: 16px; padding: 0px; font-size: 18px; color: rgb(77, 77, 77); line-height: 26px; overflow-wrap: break-word; font-family: -apple-system, "SF UI Text", Arial, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "WenQuanYi Micro Hei", sans-serif; font-variant-ligatures: common-ligatures; white-space: normal; background-color: rgb(255, 255, 255);">下面是一个可处理多命名空间的类实例</p><pre class="prettyprint" style="box-sizing: border-box; outline: 0px; margin-top: 0px; margin-bottom: 24px; padding: 8px 16px 6px 56px; position: relative; font-family: "Source Code Pro", "DejaVu Sans Mono", "Ubuntu Mono", "Anonymous Pro", "Droid Sans Mono", Menlo, Monaco, Consolas, Inconsolata, Courier, monospace, "PingFang SC", "Microsoft YaHei", sans-serif; font-size: 14px; overflow: auto hidden; border: none; line-height: 22px; overflow-wrap: break-word; background-color: rgb(40, 44, 52); font-variant-ligatures: common-ligatures;"><?phpnamespace Example;/** * An example of a general-purpose implementation that includes the optional * functionality of allowing multiple base directories for a single namespace * prefix. * * Given a foo-bar package of classes in the file system at the following * paths ... * * /path/to/packages/foo-bar/ * src/ * Baz.php # Foo\Bar\Baz * Qux/ * Quux.php # Foo\Bar\Qux\Quux * tests/ * BazTest.php # Foo\Bar\BazTest * Qux/ * QuuxTest.php # Foo\Bar\Qux\QuuxTest * * ... add the path to the class files for the \Foo\Bar\ namespace prefix * as follows: * * <?php * // instantiate the loader * $loader = new \Example\Psr4AutoloaderClass; * * // register the autoloader * $loader->register(); * * // register the base directories for the namespace prefix * $loader->addNamespace('Foo\Bar', '/path/to/packages/foo-bar/src'); * $loader->addNamespace('Foo\Bar', '/path/to/packages/foo-bar/tests'); * * The following line would cause the autoloader to attempt to load the * \Foo\Bar\Qux\Quux class from /path/to/packages/foo-bar/src/Qux/Quux.php: * * <?php * new \Foo\Bar\Qux\Quux; * * 以下代码将由 /path/to/packages/foo-bar/tests/Qux/QuuxTest.php * 载入 \Foo\Bar\Qux\QuuxTest 类 * * <?php * new \Foo\Bar\Qux\QuuxTest; */class Psr4AutoloaderClass{ /** * An associative array where the key is a namespace prefix and the value * is an array of base directories for classes in that namespace. * * @var array */ protected $prefixes = array(); /** * 在 SPL 自动加载器栈中注册加载器 * * @return void */ public function register() { spl_autoload_register(array($this, 'loadClass')); } /** * 添加命名空间前缀与文件基目录对 * * @param string $prefix 命名空间前缀 * @param string $base_dir 命名空间中类文件的基目录 * @param bool $prepend 为 True 时，将基目录插到最前，这将让其作为第一个被搜索到，否则插到将最后。 * @return void */ public function addNamespace($prefix, $base_dir, $prepend = false) { // 规范化命名空间前缀 $prefix = trim($prefix, '\\') . '\\'; // 规范化文件基目录 $base_dir = rtrim($base_dir, '/') . DIRECTORY_SEPARATOR; $base_dir = rtrim($base_dir, DIRECTORY_SEPARATOR) . '/'; // 初始化命名空间前缀数组 if (isset($this->prefixes[$prefix]) === false) { $this->prefixes[$prefix] = array(); } // 将命名空间前缀与文件基目录对插入保存数组 if ($prepend) { array_unshift($this->prefixes[$prefix], $base_dir); } else { array_push($this->prefixes[$prefix], $base_dir); } } /** * 由类名载入相应类文件 * * @param string $class 完整的类名 * @return mixed 成功载入则返回载入的文件名，否则返回布尔 false */ public function loadClass($class) { // 当前命名空间前缀 $prefix = $class; // work backwards through the namespace names of the fully-qualified // class name to find a mapped file name while (false !== $pos = strrpos($prefix, '\\')) { // retain the trailing namespace separator in the prefix $prefix = substr($class, 0, $pos + 1); // the rest is the relative class name $relative_class = substr($class, $pos + 1); // try to load a mapped file for the prefix and relative class $mapped_file = $this->loadMappedFile($prefix, $relative_class); if ($mapped_file) { return $mapped_file; } // remove the trailing namespace separator for the next iteration // of strrpos() $prefix = rtrim($prefix, '\\'); } // 找不到相应文件 return false; } /** * Load the mapped file for a namespace prefix and relative class. * * @param string $prefix The namespace prefix. * @param string $relative_class The relative class name. * @return mixed Boolean false if no mapped file can be loaded, or the * name of the mapped file that was loaded. */ protected function loadMappedFile($prefix, $relative_class) { // are there any base directories for this namespace prefix? if (isset($this->prefixes[$prefix]) === false) { return false; } // look through base directories for this namespace prefix foreach ($this->prefixes[$prefix] as $base_dir) { // replace the namespace prefix with the base directory, // replace namespace separators with directory separators // in the relative class name, append with .php $file = $base_dir . str_replace('\\', DIRECTORY_SEPARATOR, $relative_class) . '.php'; $file = $base_dir . str_replace('\\', '/', $relative_class) . '.php'; // 当文件存在时，在入之 if ($this->requireFile($file)) { // 完成载入 return $file; } } // 找不到相应文件 return false; } /** * 当文件存在，则从文件系统载入之 * * @param string $file 需要载入的文件 * @return bool 当文件存在则为 True，否则为 false */ protected function requireFile($file) { if (file_exists($file)) { require $file; return true; } return false; }}123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187</pre><h3 style="box-sizing: border-box; outline: 0px; margin: 8px 0px 16px; padding: 0px; font-family: "PingFang SC", "Microsoft YaHei", SimHei, Arial, SimSun; font-size: 22px; color: rgb(79, 79, 79); line-height: 30px; overflow-wrap: break-word; font-variant-ligatures: common-ligatures; white-space: normal; background-color: rgb(255, 255, 255);"><a style="box-sizing: border-box; outline: none; margin: 0px; padding: 0px; font-weight: normal; cursor: pointer; background-color: transparent; color: rgb(78, 161, 219); overflow-wrap: break-word;" name="t3"></a><a style="box-sizing: border-box; outline: none; margin: 0px; padding: 0px; font-weight: normal; cursor: pointer; background-color: transparent; color: rgb(78, 161, 219); overflow-wrap: break-word;" name="t3"></a><a id="_300" style="box-sizing: border-box; outline: none; margin: 0px; padding: 0px; font-weight: normal; cursor: pointer; background-color: transparent; color: rgb(78, 161, 219); overflow-wrap: break-word;"></a>单元测试</h3><p style="box-sizing: border-box; outline: 0px; margin-top: 0px; margin-bottom: 16px; padding: 0px; font-size: 18px; color: rgb(77, 77, 77); line-height: 26px; overflow-wrap: break-word; font-family: -apple-system, "SF UI Text", Arial, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "WenQuanYi Micro Hei", sans-serif; font-variant-ligatures: common-ligatures; white-space: normal; background-color: rgb(255, 255, 255);">以下是上面代码单元测试的一种实现：</p><pre class="prettyprint" style="box-sizing: border-box; outline: 0px; margin-top: 0px; margin-bottom: 24px; padding: 8px 16px 6px 56px; position: relative; font-family: "Source Code Pro", "DejaVu Sans Mono", "Ubuntu Mono", "Anonymous Pro", "Droid Sans Mono", Menlo, Monaco, Consolas, Inconsolata, Courier, monospace, "PingFang SC", "Microsoft YaHei", sans-serif; font-size: 14px; overflow: auto hidden; border: none; line-height: 22px; overflow-wrap: break-word; background-color: rgb(40, 44, 52); font-variant-ligatures: common-ligatures;"><?phpnamespace Example\Tests;class MockPsr4AutoloaderClass extends Psr4AutoloaderClass{ protected $files = array(); public function setFiles(array $files) { $this->files = $files; } protected function requireFile($file) { return in_array($file, $this->files); }}class Psr4AutoloaderClassTest extends \PHPUnit_Framework_TestCase{ protected $loader; protected function setUp() { $this->loader = new MockPsr4AutoloaderClass; $this->loader->setFiles(array( '/vendor/foo.bar/src/ClassName.php', '/vendor/foo.bar/src/DoomClassName.php', '/vendor/foo.bar/tests/ClassNameTest.php', '/vendor/foo.bardoom/src/ClassName.php', '/vendor/foo.bar.baz.dib/src/ClassName.php', '/vendor/foo.bar.baz.dib.zim.gir/src/ClassName.php', )); $this->loader->addNamespace( 'Foo\Bar', '/vendor/foo.bar/src' ); $this->loader->addNamespace( 'Foo\Bar', '/vendor/foo.bar/tests' ); $this->loader->addNamespace( 'Foo\BarDoom', '/vendor/foo.bardoom/src' ); $this->loader->addNamespace( 'Foo\Bar\Baz\Dib', '/vendor/foo.bar.baz.dib/src' ); $this->loader->addNamespace( 'Foo\Bar\Baz\Dib\Zim\Gir', '/vendor/foo.bar.baz.dib.zim.gir/src' ); } public function testExistingFile() { $actual = $this->loader->loadClass('Foo\Bar\ClassName'); $expect = '/vendor/foo.bar/src/ClassName.php'; $this->assertSame($expect, $actual); $actual = $this->loader->loadClass('Foo\Bar\ClassNameTest'); $expect = '/vendor/foo.bar/tests/ClassNameTest.php'; $this->assertSame($expect, $actual); } public function testMissingFile() { $actual = $this->loader->loadClass('No_Vendor\No_Package\NoClass'); $this->assertFalse($actual); } public function testDeepFile() { $actual = $this->loader->loadClass('Foo\Bar\Baz\Dib\Zim\Gir\ClassName'); $expect = '/vendor/foo.bar.baz.dib.zim.gir/src/ClassName.php'; $this->assertSame($expect, $actual); } public function testConfusion() { $actual = $this->loader->loadClass('Foo\Bar\DoomClassName'); $expect = '/vendor/foo.bar/src/DoomClassName.php'; $this->assertSame($expect, $actual); $actual = $this->loader->loadClass('Foo\BarDoom\ClassName'); $expect = '/vendor/foo.bardoom/src/ClassName.php'; $this->assertSame($expect, $actual); }}</pre><p><br/></p>
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