gistfile1.php

<?php
$url='domain.com/newyork/en/home/welcome-to-our-website';
$parts=explode('/',$url);
$domain='';
$location='';
$language='';
$page='';
$article='';

switch(count($parts))
{
	case 2:
		$domain=$parts[0];
		$page=$parts[1];
		break;
	case 3:
		$domain=$parts[0];
		$page=$parts[1];
		$article=$parts[2];
		break;
	case 5:
		$domain=$parts[0];
		$location=$parts[1];
		$language=$parts[2];
		$page=$parts[3];
		$article=$parts[4];
		break;
}

echo "$domain/$location/$language/$page/$article";
?>