CS 1.6 serverstatus

<?php
error_reporting(E_ALL);
include "../../maincore.php";
require_once THEMES."templates/header.php";
opentable("*** ServerList");
echo "<table width='100%' valign='top' cellpadding='1' cellspacing='1' class='tbl-border'>
<tr>
<td class='tbl2'></td>
<td class='tbl2' align='center'>Názov servera</td>
<td class='tbl2' align='center'>IP:Port</td>
<td class='tbl2' align='center'>Mapa</td>
<td class='tbl2' align='center'>Hráči</td>
<td class='tbl2' width='5%'>Status</td>
</tr>";
CS16("217.11.249.83", "27330");
echo "</table>";
closetable();
include THEMES."templates/footer.php";

function CS16($ip, $port) {
   $packet = "\xFF\xFF\xFF\xFFTSource Engine Query\x00";
   if (!$server = @fsockopen("udp://".$ip, $port, $errno, $errstr)) {
      echo "<tr>
      <td class='tbl1' align='center' valign='middle'><img src='".BASEDIR."infusions/server_list/images/cs16.gif' title='Counter-Strike 1.6' alt='Counter-Strike 1.6' /></td>
      <td class='tbl1' align='center' valign='middle'>Server je vypnutý...</td>
      <td class='tbl1' align='center' valign='middle'>{$ip}:{$port}</td>
      <td class='tbl1' align='center' valign='middle'>...</td>
      <td class='tbl1' align='center' valign='middle'>0 / 0</td>
      <td class='tbl1' align='center' valign='middle'><img src='".BASEDIR."infusions/server_list/images/offline.png' title='Server je Offline' alt='Server je Offline' /></td>
      </tr>";
   } else {
      fwrite($server, $packet);
      socket_set_timeout($server, 1, 0);
      $junk = fread($server, 5);
      $status = socket_get_status($server);
      $do = 1;
      $server_info = "";
      while($do) {
         $str = fread($server, 1);
         $server_info .= $str;
         $status = socket_get_status($server);
         if ($status["unread_bytes"] == 0) { $do = 0; }
      }
      fclose($server);
      if (strlen($server_info) > 0) {
         $junk = getnextstring($server_info);
         $servername = getnextstring($server_info);
         $map = getnextstring($server_info);
         $junk = getnextstring($server_info);
         $junk = getnextstring($server_info);
         $players = getnextbytevalue($server_info);
         $maxplayers = getnextbytevalue($server_info);
         echo "<tr>
         <td class='tbl1' align='center' valign='middle'><img src='".BASEDIR."infusions/server_list/images/cs16.gif' title='Counter-Strike 1.6' alt='Counter-Strike 1.6' /></td>
         <td class='tbl1' align='center' valign='middle'>{$servername}</td>
         <td class='tbl1' align='center' valign='middle'>{$ip}:{$port}</td>
         <td class='tbl1' align='center' valign='middle'>{$map}</td>
         <td class='tbl1' align='center' valign='middle'>{$players} / {$maxplayers}</td>
         <td class='tbl1' align='center' valign='middle'><img src='".BASEDIR."infusions/server_list/images/online.png' title='Server je Online' alt='Server je Online' /></td>
         </tr>";
      } else {
         echo "<tr>
         <td class='tbl1' align='center' valign='middle'><img src='".BASEDIR."infusions/server_list/images/cs16.gif' title='Counter-Strike 1.6' alt='Counter-Strike 1.6' /></td>
         <td class='tbl1' align='center' valign='middle'>Server je vypnutý...</td>
         <td class='tbl1' align='center' valign='middle'>{$ip}:{$port}</td>
         <td class='tbl1' align='center' valign='middle'>...</td>
         <td class='tbl1' align='center' valign='middle'>0 / 0</td>
         <td class='tbl1' align='center' valign='middle'><img src='".BASEDIR."infusions/server_list/images/offline.png' title='Server je Offline' alt='Server je Offline' /></td>
         </tr>";
      }
   }
}

function getnextstring(&$data) {
   $temp = "";
   $counter = 0;
   while(ord($data[$counter++]) != 0) $temp .= $data[$counter-1];
   $data = substr($data, strlen($temp)+1);
   return $temp;
}

function getnextbytevalue(&$data) {
   $temp = ord($data[0]);
   $data = substr($data, 1);
   return $temp;
}

?>