Simple PHP proxy script for tinyurl.com

<?php

/*
 * tinyurl.php
 *
 * A simple PHP proxy script for tinyurl.com
 *
 * USAGE:
 *
 * Load
 *   http://yourdomain.com/tinyurl.php?37o68u6
 * as replacement for
 *   http://tinyurl.com/37o68u6
 *
 * You may also create a subdomain and use URL rewriting and the following rule:
 *  RewriteEngine on
 *  RewriteBase /
 *  RewriteCond %{REQUEST_FILENAME} !-f
 *  RewriteCond %{REQUEST_FILENAME} !tinyurl.php
 *  RewriteRule (.*) tinyurl.php?$1
 * to allow usage like this: http://tinyurl.yourdomain.com/37o68u6
 *
 */

$qs = @$_SERVER['QUERY_STRING'];
if ($qs){
    $headers = get_headers('http://tinyurl.com/'.$qs, 1);
    if (@$headers['Location']){
        $url = is_array($headers['Location'])?$headers['Location'][0]:$headers['Location'];
        header('Location: '.$url);
        exit;
    }
}

?>