php URL编码解码函数代码

php URL编码解码函数代码

<?php 
$url = "www.liuan.mobi"; 
echo urlencode($url); //输出编码后的字符串 
?> 

<?php 
$url = "www.liuan.mobi"; 
$newurl = urlencode($url); //首先对$url进行编码 
echo urldecode($newurl); //输出解码后的字符串 
?>