php获取帝国CMS各种路径的几种写法

<?php
$url_this = 'http://'.$_SERVER['SERVER_NAME'].$_SERVER["REQUEST_URI"]; //只取路径
?>
<?=$url_this?>

<?php  
$url_this = "http://".$_SERVER['HTTP_HOST'].$_SERVER['PHP_SELF'].'?'.$_SERVER['QUERY_STRING'];//获取完整的url
?>
<?=$url_this?>

测试网址: https://www.ebingou.cn/showinfo-34-4035-0.html
<?
//获取域名或主机地址
echo $_SERVER ['HTTP_HOST']."<br>"; #  www.ebingou.cn

//获取网页地址
echo $_SERVER ['PHP_SELF']."<br>"; # /e/action/ShowInfo.php

//获取网址参数
echo $_SERVER ["QUERY_STRING"]."<br>"; # classid=34&id=4035&page=0

//获取用户代理
echo $_SERVER ['HTTP_REFERER']."<br>";

// 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'];
#https://www.ebingou.cn/showinfo-34-4035-0.html
# https://www.ebingou.cn/e/action/ShowInfo.php?classid=34&id=4035&page=0

//包含端口号的完整url
echo 'http://'. $_SERVER ['SERVER_NAME'].':'. $_SERVER ["SERVER_PORT"]. $_SERVER ["REQUEST_URI"];
# http://wdzzz.com:80/showinfo-34-4035-0.html

//只取路径
$url ='http://'. $_SERVER ['SERVER_NAME']. $_SERVER ["REQUEST_URI"];
echo dirname ( $url );
# http://wdzzz.com
?>