获取域名URL

#测试网址:     http://localhost/blog/testurl.php?id=5

//获取域名或主机地址 
echo $_SERVER[‘HTTP_HOST‘]."<br>"; #localhost

//获取网页地址 
echo $_SERVER[‘PHP_SELF‘]."<br>"; #/blog/testurl.php

//获取网址参数 
echo $_SERVER["QUERY_STRING"]."<br>"; #id=5

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

//获取完整的url
echo $_SERVER["REQUEST_SCHEME"].‘://‘.$_SERVER[‘HTTP_HOST‘].$_SERVER[‘REQUEST_URI‘];
echo $_SERVER["REQUEST_SCHEME"].‘://‘.$_SERVER[‘HTTP_HOST‘].$_SERVER[‘PHP_SELF‘].‘?‘.$_SERVER[‘QUERY_STRING‘];
#http://localhost/blog/testurl.php?id=5

//包含端口号的完整url
echo $_SERVER["REQUEST_SCHEME"].‘://‘.$_SERVER[‘SERVER_NAME‘].‘:‘.$_SERVER["SERVER_PORT"].$_SERVER["REQUEST_URI"]; 
#http://localhost:80/blog/testurl.php?id=5

//只取路径
$url=‘http://‘.$_SERVER[‘SERVER_NAME‘].$_SERVER["REQUEST_URI"]; 
echo dirname($url);
#http://localhost/blog

#测试网址: http://localhost/blog/testurl.php?id=5//获取域名或主机地址 echo$_SERVER[‘HTTP_HOST‘]."<br>"; #localhost//获取网页地址 echo$_SERVER[‘PHP_SELF‘]."<br>"; #/blog/testurl.php//获取网址参数 echo$_SERVER["QUERY_STRING"]."<br>"; #id=5//获取用户代理 echo$_SERVER[‘HTTP_REFERER‘]."<br>"; //获取完整的urlecho$_SERVER["REQUEST_SCHEME"].‘://‘.$_SERVER[‘HTTP_HOST‘].$_SERVER[‘REQUEST_URI‘]; echo$_SERVER["REQUEST_SCHEME"].‘://‘.$_SERVER[‘HTTP_HOST‘].$_SERVER[‘PHP_SELF‘].‘?‘.$_SERVER[‘QUERY_STRING‘]; #http://localhost/blog/testurl.php?id=5//包含端口号的完整urlecho$_SERVER["REQUEST_SCHEME"].‘://‘.$_SERVER[‘SERVER_NAME‘].‘:‘.$_SERVER["SERVER_PORT"].$_SERVER["REQUEST_URI"]; #http://localhost:80/blog/testurl.php?id=5//只取路径$url=‘http://‘.$_SERVER[‘SERVER_NAME‘].$_SERVER["REQUEST_URI"]; echo dirname($url); #http://localhost/blog

获取域名URL

原文：https://www.cnblogs.com/xuanjiange/p/14177864.html