How to get url in php without parameters

How to get url in php without parameters: 1. Get the domain name or host address through "$_SERVER['HTTP_HOST']"; 2. Get the web page address through "$_SERVER['PHP_SELF']" .

The operating environment of this article: windows7 system, PHP7.1 version, DELL G3 computer

How to get the url in php without parameters?

Test URL:

http://afish.cnblogs.com/p/3941211.html?id=1

The PHP code is implemented as follows:

//获取域名或主机地址
echo $_SERVER[&#39;HTTP_HOST&#39;]."<br />"; #afish.cnblogs.com
//获取网页地址
echo $_SERVER[&#39;PHP_SELF&#39;]."<br />"; #/p/3941211.html
//获取网址参数
echo $_SERVER["QUERY_STRING"]."<br />"; #id=1
//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://afish.cnblogs.com/p/3941211.html?id=1
//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://afish.cnblogs.com:80/p/3941211.html?id=1
//只取路径
$url=&#39;http://&#39;.$_SERVER[&#39;SERVER_NAME&#39;].$_SERVER["REQUEST_URI"];
echo dirname($url);
#http://afish.cnblogs.com/p

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