How to get the URL in php

How to get the URL in php

PHP implements getting url--detailed explanation of address parameters:

//获取域名或主机地址
echo $_SERVER[&#39;HTTP_HOST&#39;]."<br>"; #localhost

//获取网页地址
echo $_SERVER[&#39;PHP_SELF&#39;]."<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[&#39;HTTP_REFERER&#39;]."<br>";

//获取完整的url
echo &#39;http://&#39;.$_SERVER[&#39;HTTP_HOST&#39;].$_SERVER[&#39;REQUEST_URI&#39;];
echo &#39;http://&#39;.$_SERVER[&#39;HTTP_HOST&#39;].$_SERVER[&#39;PHP_SELF&#39;].&#39;?&#39;.$_SERVER[&#39;QUERY_STRING&#39;];
#http://localhost/blog/testurl.php?id=5

//包含端口号的完整url
echo &#39;http://&#39;.$_SERVER[&#39;SERVER_NAME&#39;].&#39;:&#39;.$_SERVER["SERVER_PORT"].$_SERVER["REQUEST_URI"];
# http ://localhost:80/blog/testurl.php?id=5

//只取路径
$url=&#39;http://&#39;.$_SERVER[&#39;SERVER_NAME&#39;].$_SERVER["REQUEST_URI"];
echo dirname($url);

So the URL can be obtained through 'http://'.$_SERVER['HTTP_HOST'].$_SERVER['PHP_SELF'].'?'.$_SERVER['QUERY_STRING'];.

For more PHP related knowledge, please visit PHP Chinese website!

The above is the detailed content of How to get the URL in php. For more information, please follow other related articles on the PHP Chinese website!