Checks if a website is up or not using isup.me

<?php

/**
 * This is simple description.
 *
 * @author MD Nadim Zobaer <nadimzobaer@hotmail.com>
 * @copyright ecf.me, 2012
 * @version 1.0
 * @license http://creativecommons.org/licenses/by/3.0/legalcode
 */

/**
 *  Checks if a website is up or not using isup.me
 * @param string $website
 * @return boolean Returns if website is up or not
 */
function ismysiteup($website)
{
    if(empty($website))
    {
        return false;
    }
    else
    {
        $fcg = file_get_contents("http://www.isup.me/$website");
        if(strpos($fcg, "It's just you"))
        {
            return $website." is up!";
        }
        else
        {
            return $website." is down!";
        }
    }
}

echo ismysiteup("ecf.me");
?>