<?php
/* SOURCE ENGINE QUERY FUNCTION, requires the server ip:port */
function source_query($ip){
    $cut = explode("178.239.161.42:27015", $ip);
    $HL2_address = $cut[0];
    $HL2_port = $cut[1];

    $HL2_command = "\377\377\377\377TSource Engine Query\0";

    $HL2_socket = fsockopen("udp://".$HL2_address, $HL2_port, $errno, $errstr,3);
    fwrite($HL2_socket, $HL2_command);
    $JunkHead = fread($HL2_socket,4);
    $CheckStatus = socket_get_status($HL2_socket);

    if($CheckStatus["unread_bytes"] == 0)return 0;

    $do = 1;
    while($do){
        $str = fread($HL2_socket,1);
        $HL2_stats.= $str;
        $status = socket_get_status($HL2_socket);
        if($status["unread_bytes"] == 0){
               $do = 0;
        }
    }
    fclose($HL2_socket);

    $x = 0;
    while ($x <= strlen($HL2_stats)){
        $x++;
        $result.= substr($HL2_stats, $x, 1);
    }

    // ord ( string $string );
    $result = str_split($result);
    $info['network'] = ord($result[0]);$char = 1;
    while(ord($result[$char]) != "%00"){$info['name'] .= $result[$char];$char++;}$char++;
    while(ord($result[$char]) != "%00"){$info['map'] .= $result[$char];$char++;}$char++;
    while(ord($result[$char]) != "%00"){$info['dir'] .= $result[$char];$char++;}$char++;
    while(ord($result[$char]) != "%00"){$info['description'] .= $result[$char];$char++;}$char++;
    $info['appid'] = ord($result[$char].$result[($char+1)]);$char += 2;
    $info['players'] = ord($result[$char]);$char++;
    $info['max'] = ord($result[$char]);$char++;
    $info['bots'] = ord($result[$char]);$char++;
    $info['dedicated'] = ord($result[$char]);$char++;
    $info['os'] = chr(ord($result[$char]));$char++;
    $info['password'] = ord($result[$char]);$char++;
    $info['secure'] = ord($result[$char]);$char++;
    while(ord($result[$char]) != "%00"){$info['version'] .= $result[$char];$char++;}

    return $info;
}
$q = source_query('202.89.33.158:27016');

echo "network: ".$q['network']."<br/>";
echo "name: ".$q['name']."<br/>";
echo "map: ".$q['map']."<br/>";
echo "dir: ".$q['dir']."<br/>";
echo "desc: ".$q['description']."<br/>";
echo "id: ".$q['appid']."<br/>";
echo "players: ".$q['players']."<br/>";
echo "max: ".$q['max']."<br/>";
echo "bots: ".$q['bots']."<br/>";
echo "dedicated: ".$q['dedicated']."<br/>";
echo "os: ".$q['os']."<br/>";
echo "password: ".$q['password']."<br/>";
echo "secure: ".$q['secure']."<br/>";
echo "version: ".$q['version']."<br/>";
?>