80 lines
2.2 KiB
PHP
80 lines
2.2 KiB
PHP
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<?php
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/**
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* This file is part of workerman.
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*
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* Licensed under The MIT License
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* For full copyright and license information, please see the MIT-LICENSE.txt
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* Redistributions of files must retain the above copyright notice.
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*
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* @author walkor<walkor@workerman.net>
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* @copyright walkor<walkor@workerman.net>
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* @link http://www.workerman.net/
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* @license http://www.opensource.org/licenses/mit-license.php MIT License
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*/
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namespace Workerman;
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// 包含常量定义文件
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require_once __DIR__.'/Lib/Constants.php';
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/**
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* 自动加载类
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* @author walkor<walkor@workerman.net>
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*/
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class Autoloader
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{
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// 应用的初始化目录，作为加载类文件的参考目录
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protected static $_appInitPath = '';
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/**
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* 设置应用初始化目录
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* @param string $root_path
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* @return void
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*/
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public static function setRootPath($root_path)
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{
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self::$_appInitPath = $root_path;
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}
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/**
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* 根据命名空间加载文件
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* @param string $name
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* @return boolean
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*/
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public static function loadByNamespace($name)
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{
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// 相对路径
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$class_path = str_replace('\\', DIRECTORY_SEPARATOR ,$name);
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// 如果是Workerman命名空间，则在当前目录寻找类文件
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if(strpos($name, 'Workerman\\') === 0)
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{
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$class_file = __DIR__.substr($class_path, strlen('Workerman')).'.php';
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}
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else
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{
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// 先尝试在应用目录寻找文件
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if(self::$_appInitPath)
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{
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$class_file = self::$_appInitPath . DIRECTORY_SEPARATOR . $class_path.'.php';
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}
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// 文件不存在，则在上一层目录寻找
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if(empty($class_file) || !is_file($class_file))
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{
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$class_file = __DIR__.DIRECTORY_SEPARATOR.'..'.DIRECTORY_SEPARATOR . "$class_path.php";
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}
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}
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// 找到文件
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if(is_file($class_file))
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{
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// 加载
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require_once($class_file);
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if(class_exists($name, false))
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{
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return true;
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}
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}
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return false;
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}
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}
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// 设置类自动加载回调函数
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spl_autoload_register('\Workerman\Autoloader::loadByNamespace');
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