http://my.oschina.net/u/1178986/blog/201206

//thinkphp 路由定义规则		
$route = array(
				'news/:action^delete|update|insert/:yeard/:month/:day'=>array('news/read?extra=:2&status=1','year=:2&month=:3&day=:4'),
				'news/:action/:yeard/:month/:day'=>'news/read?year=:2&month=:3&day=:4'
			  );

$url  = 'http://www.test.com/index.php/news/read/2012/2/21/extraparam/test.html';



//后缀名
$extension = 'html';



//根据pathinfo定义  详情看： http://my.oschina.net/u/1178986/blog/201206
//可知: $_SERVER['PATH_INFO'] = 'news/read/2012/2/21/extraparam/test.html';
$regx = 'news/read/2012/2/21/extraparam/test.html';

//循环匹配路由规则
foreach($route as $key=>$value){
		//如果匹配成功，则不继续匹配
		if(parseUrlRule($key,$value,$regx,$extension))
			break;
}



/**
 *  @$rule  string    路由规则   
 *  @$route string    规则映射的新地址
 *  @$regx  string    地址栏pathinfo字符串
 *  @$extension stirng  伪静态拓展名
 *  return  bool 
 */
function parseUrlRule($rule,$route,$regx,$extension=null){
		 //去掉后缀名
		 !is_null($extension) && $regx = str_replace('.'.$extension,'',$regx);

		 //把路由规则和地址,分割到数组中，然后逐项匹配
		 $ruleArr = explode('/',$rule);
		 $regxArr = explode('/',$regx);

		 //$route以数组的格式传递，则取第一个
		 $url = is_array($route) ? $route[0] : $route;
		 $match =true;

		 //匹配检测
		 foreach($ruleArr as $key=>$value){
		 		if(strpos($value,':')===0){
		 			if(substr($value,-2)=='\d' && !is_numeric($regxArr[$key])){
		 				$match = false;
		 				break;
		 			}elseif(strpos($value,'^')){
		 				$stripArr = explode('|',trim(strstr($value,'^'),'^'));
		 				if(in_array($regxArr[$key],$stripArr)){
		 					$match = false;
		 					break;
		 				}
		 			}
		 		//静态项不区分大小写
		 		}elseif(strcasecmp($value, $regxArr[$key])!==0)	{
		 			$match = false;
		 			break;
		 		}
		 }

		 //匹配成功
		 if($match){
		 		//把动态变量写入到数组$matches 中，同时去除静态匹配项
		 		foreach($ruleArr as $key=>$value){
		 				if(strpos($value,':')===0){
		 					//获取动态变量，作为数组下标
		 					if(substr($value,-2,1)=='\')
		 						$matchKey = substr($value,1,-2);
		 					elseif($pos=strpos($value,'^'))
		 						$matchKey =substr($value,1,$pos-1); 
		 					else
		 						$matchKey = substr($value,1);

		 					$matches[$matchKey] = array_shift($regxArr);
		 				}else
		 					array_shift($regxArr);   //去除静态匹配项
		 		}


		 		//获取数组中的值，目的是配合子模式进行替换
		 		$values = array_values($matches);
		 		//正则匹配替换,正则需要用'e'作为修饰符
		 		$url = preg_replace('/:(d+)/e','$values[\1-1]',$url);

		 		//解析url    格式:  分组/模块/操作?key1=value1&key2=value2
		 		if(strpos($url,'?')!==false){   
		 			 // 分组/模块/操作?key1=value1&key2=value2
		 				$arr = parse_url($url);
		 				$paths = explode('/',$arr['path']);
		 				parse_str($arr['query'],$queryArr);
		 		}elseif(strpos($url,'/')!==false)  //分组/模块/操作)
		 				$paths = explode('/',$url);
		 		else 							// key1=value1&key2=value2
		 				parse_str($url,$queryArr);


		 		//获取 分组 模块 操作
		 		if(!empty($paths)){
		 				$var['actionName'] = array_pop($paths);
		 				$var['moduleName'] = array_pop($paths);
		 				if(!empty($paths)){
		 					$groupList = 'Home,Admin';
		 					$temp = array_pop($paths);
		 					if(in_array($temp,explode(',',$groupList)))
		 						$var['groupName'] = $temp;
		 				}
		 		}
		 		//合并的到GET数组中，方便全局调用
		 		$_GET = array_merge($_GET,$var);

		 		//合并参数
		 		if(isset($queryArr))
		 			$_GET = array_merge($_GET,$queryArr);

		 		//匹配url中剩余的参数
		 		preg_replace('/(w+)/([^,/]+)/e','$tempArr['\1']='\2'',implode('/',$regxArr));
		 		if(!empty($tempArr))
		 			$_GET = array_merge($_GET,$tempArr);


		 		//route是数组的话
		 		if(is_array($route)){
		 				$route[1]=preg_replace('/:(d+)/e','$values[\1-1]',$route[1]);
		 				parse_str($route[1],$var);
		 				$_GET = array_merge($_GET,$var);
		 				strpos($url,'?')!==false ? $der ='&' : $der='?';
		 				//最终写入到$_GET中的参数，包括三个部分
		 				//1.地址栏剩余参数
		 				//2.路由地址中的参数
		 				//3.$route是数组时的第二个参数
		 				if(!empty($tempArr))
		 					$var = array_merge($tempArr,$var);
		 				$url .=$der.http_build_query($var);
		 		}
		 		$_GET['finalUrl'] = $url;
		 		//保证$_REQUEST 也能访问
		 		$_REQUEST = array_merge($_REQUEST,$_GET);
		 		//结果
		 		print_r($_GET);
		 		return true;
		 }
		 return $match;
}





//在部署时会把index.php隐藏，开启apache的重写模块
//重写规则 ： RewriteRule  ^(.+)$  /index.php/$1 
//详细配置： http://lamp.linux.gov.cn/Apache/ApacheMenu/rewrite/
//开启后，apache会自动把 http:/www.test.com/news/read/2012/2/21/extraparam/test.html转换为 http:/www.test.com/index.php/news/read/2012/2/21/extraparam/test.html	

                       

           

2. [图片] 搜狗截图14年02月21日1621_2.png