php 简单的路由器

 
<?php
/**
 * 路由器【核心文件】 
 * @version 1.0 
 */
class Router extends Object
{
    public  $module = 'indexAction';   //缺省控制器类名
    public  $action = 'index';         //控制器缺省方法
    public  $r      = true;            //是否可以自定义
      
    /**
     * 分解路由规则
     *
     * @access  public
     * @return  array
     */
    public function path()
    {
        if ( trim(_URI_,'/') )
        {
            $url = explode('/', _URI_);
            $this->module = $url[1];
            $this->action = isset($url[2]) && !empty($url[2]) ? $url[2] : $this->action;
        } else {
            $this->module = $this->action;
        }
          
        if($this->r == false )
        {
            $made = array(
                'module' => $this->module,
                'action' => $this->action,
            );
            return $this->getObject($made , 'webApp');
        } else {
            return $this->rewrite($this->module, $this->action);   
        }
    }
      
    /**
     * 重新定义框架重写规则
     *
     * @access  private
     * @param   string  $mod    控制器名
     * @param   string  $action 请求的操作
     * @param   string  $route  规则文件
     * @return  array
     */
    private function rewrite( $mod , $action )
    {
        $file = $this->route();
        require $file;
        $url = '/'.trim( _URI_ ,'/').'/';
        if( isset($rules) )
        {
            foreach ($rules as $key => $val)
            {
                if(preg_match($val[0], $url) )
                {
                    $mod    = isset($val[1]['mod'])    ? $val[1]['mod']    : $mod;
                    $action = isset($val[1]['action']) ? $val[1]['action'] : $action;
                }
                foreach ( $val[2] as $key => $value )
                {
                    if ( !(strpos($value, '#') === FALSE) )
                    {
                        preg_match("$value", $url, $result);
                        $param[$key] = isset($result[1]) ? $result[1] : '';
                    } else {
                        $param[$key] = $value;
                    }
                }
            }
        }
  
        $made = array(
            'module' => $mod,
            'action' => $action,
            'param'  => $param
        );
        return $this->getObject($made , 'webApp');
    }
}