PHP 自动加载类

<?php

/**
 * 自动加载类文件
 * author: zbseoag
 * 示例：
 *
 * //自动加载类名以'Model' 开头的类, 加载：./lib/Model/*.class.php 文件
 * Autoload::home('./lib/')
 * ->match('\Model') //匹配以 \Model 开头的类
 * ->suffix('class.php') //类文件名后缀
 * ->register() //注册到加载函数
 *
 * $user = new \Model\User();  //实例化一个对象
 * echo Autoload::$file; //输出被加载类文件路径
 *
 * //注册并加载一个类
 * Autoload::home(__DIR__)->register()->load('Mysql');
 * echo Autoload::$file; //输出被加载类文件路径
 *
 * //仅仅生成文件路径
 * echo Autoload::home(__DIR__)->suffix('class.php')->make('Mysql');
 *
 * //输出加载失败的文件
 * echo Autoload::error();
 *
 */

class Autoload {

	public $home = '.';
	public $match = '';
	public $suffix = 'php';
	public static $file = '';
	public static $error = [];

	private function __construct($home = '.') {
		//删除后边斜杠
		$this->home = rtrim($home, '\\/');
	}

	/**
	 * 根目录
	 * @param $value
	 * @return $this
	 */
	public static function home($value = '') {
		return new static($value);
	}


	/**
	 * 匹配命名空间
	 * @param $value
	 * @return $this
	 */
	public function match($value) {
		$this->match = trim($value, '/');
		return $this;
	}

	/**
	 * 类名文件后缀，如 'class.php'
	 * @param $value
	 * @return $this
	 */
	public function suffix($value) {
		$this->suffix = ltrim($value, '.');
		return $this;
	}


	public function register() {

		spl_autoload_register(function($class) {
			$this->load($class);
		});

		return $this;
	}

	/**
	 * 生成文件路径
	 * @param $class
	 * @return string
	 */
	public function make($class) {
		//删除类名两边的斜杠 \
		$class = trim($class, '\\');
		$file = '';
		if(empty($this->match) || strpos($class, $this->match) === 0){

			if($this->match){
				$class = ltrim($class, $this->match);
			}
			$file = strtr($this->home . '/' . $class, '\\', '/') . '.' . $this->suffix;
		}
		return $file;

	}

	/**
	 * 手动加载
	 * @param $class
	 */
	public function load($class) {

		if(!empty($class)) self::$file = $this->make($class);

		if(is_file(self::$file)){
			require_once self::$file;
		}else{
			self::$error[] = self::$file;
		}

		return self::$file;

	}

	/**
	 * 动态创建对象
	 * @param $class
	 * @param $arguments
	 * @return object
	 * @throws ReflectionException
	 */
	public static function create($class, $arguments) {
		$class = new \ReflectionClass($class);
		return $class->newInstanceArgs($arguments);
	}

	public static function error() {
		return print_r(self::$error, true);
	}


}