Minecraft server php script

<?php
MCServerStatus.php
class MCServerStatus {

    public $server;
    public $online, $motd, $online_players, $max_players;
    public $error = "OK";

    function __construct($url, $port = '25565')
    {
        $this->server = array(
            "url" => $url,
            "port" => $port
        );

        if ( $sock = @stream_socket_client('tcp://'.$url.':'.$port, $errno, $errstr, 1) )
        {
            $this->online = true;

            fwrite($sock, "\xfe");
            $h = fread($sock, 2048);
            $h = str_replace("\x00", '', $h);
            $h = substr($h, 2);
            $data = explode("\xa7", $h);
            unset($h);
            fclose($sock);

            if (sizeof($data) == 3)
            {
                $this->motd = $data[0];
                $this->online_players = (int) $data[1];
                $this->max_players = (int) $data[2];
            }
            else
            {
                $this->error = "Cannot retrieve server info.";
            }
        }
        else
        {
            $this->online = false;
            $this->error = "Cannot connect to server.";
        }
    }

}
?>

<?php
//index.php
header('Content-Type: text/html; charset=utf-8');
//play.xtrememiners.hu:25565
include "MCServerStatus.php";
$server = new MCServerStatus("play.xtrememiners.hu", 25565); //The second argument is optional in this case

$var = $server->online; //$server->online returns true if the server is online, and false otherwise
echo '<pre>';
echo $server->motd; //Outputs the Message of the Day
echo $server->online_players; //Outputs the number of players online
echo $server->max_players; //Outputs the maximum number of players the server allows
print_r($server); //Shows an overview of the object and its contents. (For debugging.)
echo '</pre>';
?>