PHP修改session_id示例代码_php技巧

if(isset($_GET["se"])){ 
$se = $_GET["se"]; 
}else{ 
return; 
} 

if(!empty($se)){ 

echo("receive se: ".$se."

"); //接受的的session为$se 
session_id($se); //设置$se位session_id 
session_start(); //开启sesseion ，注意不能与上一步对调，打工告成 
echo("new session id: ".session_id()."

"); 
echo $_SESSION['h']; 
}