private static function getFacebookLike($params)
    {
        $url = $params->get('facebook_url');
        $url = urlencode($url);
        $json_string = @file_get_contents('http://api.facebook.com/restserver.php?method=links.getStats&format=json&urls=' . $url);
        $json = json_decode($json_string, true);
        $like_count = isset($json['0']) && $json['0']['like_count'] ? $json['0']['like_count'] : 0;
        return $like_count;

    }