MODX snippet to ping a site

pingX.php

<?php
// [[pingX? &url=`www.google.com` &offline=`site down`]]
$url = $modx->getOption('url', $scriptProperties, '');
$offline = $modx->getOption('offline', $scriptProperties, '');
$timeout = $modx->getOption('timeout', $scriptProperties, '30');
$port = $modx->getOption('port', $scriptProperties, '80');

if (!$socket = @fsockopen($url, $port, $errno, $errstr, $timeout)) {
	// Offline
	$result = $offline;
} else {
	//Online
	fclose($socket);
}
return $result;
?>