The Regex failed

PHP Code: 
<?php

/**
 * This is simple description.
 * 
 * @author Vick Kumar <vickkumar2011@gmail.com>
 * @copyright Seecure.me, 2012
 * @version 1.0
 * @license http://creativecommons.org/licenses/by/3.0/legalcode 
 */

function GetAlexaTrafficRank($domain)
{
        
$source file_get_contents("http://www.alexa.com/siteinfo/$domain#");
        
$regex '/is ranked (.*) in/';
        
preg_match($regex$source$match);
        
$newresult str_replace("number"""$match[1]);
        return 
$newresult;
}
echo 
"KWWHunction's Alexa Traffic Rank is: ".GetAlexaTrafficRank("besthostingforums.com").".";
?>
Try it yourself and heres the result:


Fix the regex