if (!function_exists('css_online')) {
  function css_online($ip, $port, $request) {
    $fp = @fsockopen("udp://$ip", $port, $errno, $errstr, 1);
    if (!$fp) { return FALSE; } 
    stream_set_timeout($fp, 1, 0); stream_set_blocking($fp, true);  
    if ($request == "settings" || $request == "players")
    {
      $challenge_code = "\xFF\xFF\xFF\xFF\x57"; 
      fwrite($fp, $challenge_code);
      $buffer = fread($fp, 4096);
      if (!trim($buffer)) { fclose($fp); return FALSE; }
      $challenge_code = substr($buffer, 5, 4);
    }
    if ($request == "info")     { $challenge = "\xFF\xFF\xFF\xFFTSource Engine Query\x00"; }
    if ($request == "players")  { $challenge = "\xFF\xFF\xFF\xFFU".$challenge_code;        }
    if ($request == "settings") { $challenge = "\xFF\xFF\xFF\xFFV".$challenge_code;        }
    fwrite($fp, $challenge);
    $buffer = fread($fp, 4096);
    if (!$buffer) { fclose($fp); return FALSE; } 
    if ($request == "settings")
    {
      $second_packet = fread($fp, 4096);
      if (strlen($second_packet) > 0)
      {
        $reverse_check = dechex(ord($buffer[8]));      
        if ($reverse_check[0] == "1")
        {
          $tmp           = $buffer;                    
          $buffer        = $second_packet;
          $second_packet = $tmp;
        }                 
        $buffer        = substr($buffer, 13);          
        $second_packet = substr($second_packet, 9);    
        $buffer        = trim($buffer.$second_packet); 
      }
      else
      {
        $buffer = trim(substr($buffer, 4)); 
      }
    }
    else
    {
      $buffer = trim(substr($buffer, 4)); 
    }
    fclose($fp); 
    if (!trim($buffer)) { return FALSE; } 
    if ($request == "info")
    {
      $tmp = substr($buffer, 2); 
      $tmp = explode("\x00", $tmp);
      $place = strlen($tmp[0].$tmp[1].$tmp[2].$tmp[3]) + 8;
      $data['gamemod']       = $tmp[2];
      $data['hostname']      = $tmp[0];
      $data['mapname']       = $tmp[1];
      $data['players']       = ord($buffer[$place]);
      $data['maxplayers']    = ord($buffer[$place + 1]);
      $data['password']      = ord($buffer[$place + 5]);
      $data['datatype']      = $buffer[0];               
      $data['version']       = ord($buffer[1]);          
      $data['description']   = $tmp[3];
      $data['botplayers']    = ord($buffer[$place + 2]);
      $data['server_type']   = $buffer[$place + 3];      
      $data['server_os']     = $buffer[$place + 4];      
      $data['server_bots']   = ord($buffer[$place + 2]); 
      $data['server_secure'] = ord($buffer[$place + 6]); 
      if ($data['datatype'] != "I")
      {
        return FALSE; 
      }
      return $data; 
    }
    if ($request == "players")
    {
      $player_number = 0;
      $position = 2;                                             
      do
      { 
        $player_number++;                                        
        $player[$player_number]['id'] = ord($buffer[$position]);
        $position ++;                                            
        while($buffer[$position] != "\x00" && $position < 4000)  
        {
          $player[$player_number]['name'] .= $buffer[$position]; 
          $position ++;
        }
        $player[$player_number]['score'] = (ord($buffer[$position + 1]))
                                         + (ord($buffer[$position + 2]) * 256)
                                         + (ord($buffer[$position + 3]) * 65536)
                                         + (ord($buffer[$position + 4]) * 16777216);
        if ($player[$player_number]['score'] > 2147483648) { $player[$player_number]['score'] -= 4294967296; }  
        $time = substr($buffer, $position + 5, 4);               
        if (strlen($time) < 4) { return FALSE; }                 
        list(,$time) = unpack("f", $time);                       
        $time = mktime(0, 0, $time);                             
        $player[$player_number]['time'] = date("H:i:s", $time);  
        $position += 9;
      }
      while ($position < strlen($buffer));                       
      return $player;
    }
    if ($request == "settings")
    {
      $tmp     = substr($buffer, 2); 
      $rawdata = explode("\x00", $tmp);
      for ($i=1; $i<count($rawdata); $i=$i+2)
      {
        $rawdata[$i] = strtolower($rawdata[$i]);  
        $setting[$rawdata[$i]] = $rawdata[$i+1];  
      }
      return $setting;
    }
  }
}

$ip = "abcvg.com";
$port = "27015";
$data = css_online($ip, $port, "info");
$players += $data['players']-$data['botplayers'];
$maxplayers += $data['maxplayers']-$data['botplayers'];
echo "<b>IP:Port:</b> ".$data['hostname'];
echo "<br><b>Игроков:</b> ".($data['players']-$data['botplayers'])."/".($data['maxplayers']-$data['botplayers']);
echo "<br><b>Карта:</b> ".$data['mapname'];

$datap = css_online($ip, $port, "players");
echo "<br><br>";
foreach ($datap as $value) {
echo $value['id']." - <b>".$value['name']."</b> - ".$value['score']."<br>";
}