在PHP中截取当前页面URL地址及URL信息的方法

//获取当前的域名:

echo $_SERVER['SERVER_NAME'];

//获取来源网址,即点击来到本页的上页网址

echo $_SERVER["HTTP_REFERER"];

$_SERVER['REQUEST_URI'];//获取当前域名的后缀

$_SERVER['HTTP_HOST'];//获取当前域名

dirname(FILE);//获取当前文件的物理路径

dirname(FILE)."/../";//获取当前文件的上一级物理路径

?>

#测试网址:https://www.why114.com /blog/test.php?act=checkcode

//获取域名或主机地址

echo $_SERVER['HTTP_HOST']."

"; # www.why114.com

//获取网页地址

echo $_SERVER['PHP_SELF']."

"; #/blog/test.php

//获取网址参数

echo $_SERVER["QUERY_STRING"]."

"; #act=checkcode

//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://www.why114.com /blog/test.php?act=checkcode

//包含端口号的完整url

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

#http://www.qilucms.com :80/blog/test.php?act=checkcode

//只取路径

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

echo dirname($url);

#http://www.qilucms.com :80/blog