PHP获取当前页面完整URL的代码

PHP或js获取当前页面完整URL的代码。

1，javascript代码：

//顶级窗口的地址 

top.location.href

// 当前窗口的地址

this.location.href

2，php代码：

//获取域名或主机地址 

echo $_SERVER['HTTP_HOST']."";

#localhost

//获取网页地址 

echo $_SERVER['PHP_SELF']."";

#/blog/testurl.php

//获取网址参数 

echo $_SERVER["QUERY_STRING"]."";

#id=5

//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'];

#http://localhost/liqingbo/news.php?id=5

//包含端口号的完整url

echo 'http://'.$_SERVER['SERVER_NAME'].':'.$_SERVER["SERVER_PORT"].$_SERVER["REQUEST_URI"];

#http://localhost:80/liqingbo/news.php?id=5

//只取路径

$url='http://'.$_SERVER['SERVER_NAME'].$_SERVER["REQUEST_URI"]; 

echo dirname($url);

#http://localhost/liqingbo