Get current URL excluding parameters in php

Firstly, to get the current url in php use the following:

<?
$current_url = $_SERVER['REQUEST_URI'];
echo $current_url;
?>

For URLs with trailing parameters the following will place the first part of the current URL (i.e. the part before ?) within the variable $current_url[0] and then print it out.

<?
$current_url = explode("?", $_SERVER['REQUEST_URI']);
echo $current_url[0] ;
?>

For example with the URL:

http://mydomain.com/content.php?var=1&name=mike&country=uk

The following would be saved within the variable $current_url[0] and printed out.

http://mydomain.com/content.php