js、PHP中获取当前页面的完整URL

标准

javascript实现:

top.location.href 顶级窗口的地址
this.location.href 当前窗口的地址

PHP实现

//获取域名或主机地址 
echo$_SERVER['HTTP_HOST'];
//获取网页地址
echo$_SERVER['PHP_SELF'];
//获取网址参数 
echo$_SERVER["QUERY_STRING"];
//获取用户代理 
echo$_SERVER['HTTP_REFERER'];
//获取完整的url
echo 'http://'.$_SERVER['HTTP_HOST'].$_SERVER['REQUEST_URI'];
echo 'http://'.$_SERVER['HTTP_HOST'].$_SERVER['PHP_SELF'].'?'.$_SERVER['QUERY_STRING'];
//包含端口号的完整url
echo 'http://'.$_SERVER['SERVER_NAME'].':'.$_SERVER["SERVER_PORT"].$_SERVER["REQUEST_URI"]; 
//只取路径
$url='http://'.$_SERVER['SERVER_NAME'].$_SERVER["REQUEST_URI"]; echodirname($url);