Get the Full Current Page URL in PHP

Test URL: http://localhost/chuhe/testurl.php?id=xxoo&name=fuck

Get the domain or host address

		echo $_SERVER['HTTP_HOST']."<br>"; #localhost

Get the page address

		echo $_SERVER['PHP_SELF']."<br>"; #/chuhe/testurl.php

Get the URL parameters

		echo $_SERVER["QUERY_STRING"]."<br>"; #id=xxoo&name=fuck

Get the 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/chuhe/testurl.php?id=xxoo&name=fuck

Full URL including the port number

		echo 'http://'.$_SERVER['SERVER_NAME'].':'.$_SERVER["SERVER_PORT"].$_SERVER["REQUEST_URI"]; 
		http://localhost:80/chuhe/testurl hp?id=xxoo&name=fuck

Get only the path

		$url='http://'.$_SERVER['SERVER_NAME'].$_SERVER["REQUEST_URI"]; 
		echo dirname($url);
		#http://localhost/chuhe