Functions

<?php
    function tokenKeys($length) {
        $keys = array_merge(range(0,9), range('a', 'z'));
        $key = "";
        for($i=0; $i < $length; $i++) {
            $key .= $keys[mt_rand(0, count($keys) - 1)];
        }
        return $key;
    }

    function server_source_query($ip)
    {
        $cut = explode(":", $ip);
        $HL2_address = $cut[0];
        $HL2_port = $cut[1];
        $HL2_stats = "";

        $HL2_command = "\xFF\xFF\xFF\xFFTSource Engine Query\x00";
        $HL2_socket = @fsockopen("udp://".$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; $result = "";
        while ($x <= strlen($HL2_stats))
        {
            $x++;
            $result .= substr($HL2_stats, $x, 1);
        }
        $result = urlencode($result); // the output
        return $result;
    }

    function server_read_query($string)
    {
        $string = str_replace('%07','',$string);
        $string = str_replace("%00","|||",$string);
        $sinfo = urldecode($string);
        $sinfo = explode('|||', $sinfo);
        $info['hostname'] = $sinfo[0];
        $info['map'] = $sinfo[1];
        $info['game'] = $sinfo[3];
        return $info;
    }
?>