回答PHPCHINA上的几个问题:URL映射
<?
/**
*对url路由进行简单的解析,支持对/path/to/site/index.php/module/action/parm/value
* /path/to/site/index.php?/module/action/parm/value和
* /path/to/site/?/module/action/parm/value三种形式的处理
*@param:null
*@return:router array
*/
function url_router(){
$path=strip_tags($_SERVER['REQUEST_URI']);
$strpos=strpos($path,'.php');
if($strpos){
$path=substr($path,$strpos+4);
}else{
if(empty($_SERVER['QUERY_STRING'])){
$strpos=strpos($path,'?');
if($strpos){
$path=substr($path,$strpos+1);
}else{
$path='';
}
}else{
$path=$_SERVER['QUERY_STRING'];
}
}
//统一化$path的格式,如果$path的第一个字符为/则去掉
if($path[0]=='/'){
$path=substr($path,1);
}
//解析,并且路由
if(!empty($path)){
$path=explode('/',$path);
$router['controller']=$path[0];
$router['action']=(!empty($path[1]))?$path[1]:'index';
//print_r($path);
for($i=2;$i $params[$path[$i]]=(isset($path[$i+1]))?$path[$i+1]:''; } $router['params']=$params; }else{ //默认路由信息 $router['controller']='index'; $router['action']='index'; $router['params']=array(); } return $router; } ?>