Get the full URL of the current page in PHP

JavaScript implementations:

Top.location.href   The address of the top-level window
This.location.href  The address of the current window

PHP implementation

#Test URL: http://localhost/blog/testurl.php?id=5

Get domain name or host address
Echo$_server[' Http_host ']. " <br> ";#localhost

Get web Address
Echo$_server[' php_self ']. " <br> ";#/blog/testurl.php

Get URL parameters
Echo$_server["Query_string"]. " <br> ";#Id=5

Get user Agent
Echo$_server[' Http_referer ']. " <br> ";

//Get the full URL
Echo ' 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 
 
// The full Url 
 echo '/http '. $_server["Server_port"]. $_server["Request_uri"]; 
 #http://localhost:80/blog/testurl.php?id=5 
 
//Fetch path  
  $url = ' http://'. $_server["Request_uri"]; 
 echo dirname ( $url ); 
 #http://localhost/blog      

Get the full URL of the current page in PHP