PHP gets the full URL of the current page

This article introduces, with PHP to get the full URL of the current page of a piece of code, very simple, very practical, there is a need for a friend reference. In PHP, all the information is contained in the hyper-global variable $_server. With $_server, we can get almost all kinds of information to the desired URL. In this paper, we use $_server, a hyper-global variable, to construct the full URL of the current page. Example 1, Code: Example 2, gets the URL of the current page. "; #localhost//Get web address echo $_server[' php_self ']. " "; #/blog/testurl.php//get URL parameters echo $_server["Query_string"]. " "; #id =5//Get the user agent echo $_server[' Http_referer ']. "; Get the full Urlecho ' http://'. $_server[' http_host '].$_server[' request_uri '];echo '/http '. $_server[' Http_host '].$_ server[' php_self ']. '? '. $_server[' query_string '; #http://localhost/blog/testurl.php?id=5//contains the port number of the complete Urlecho ' http://'. $_server[' Server_ NAME ']. ': '. $_server["Server_port"].$_server["Request_uri"]; #http://localhost:80/blog/testurl.php?id=5//only take path $url= '/http '. $_server[' server_name '].$_server["Request_uri"] ; echo dirname ($url); #http://localhost/blog?> Example 3, gets the full URL of the current page.

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