Довести скрипт мониторинга до ума

<?php
    list($ip, $port) = explode(":", $_GET["server"]);
    $fp = @fsockopen("udp://".$ip, $port, $errno, $errstr);
    
    $server_name = "unknown";
    $server_online = "<font style=\"color: red;\">Выкл.</font>";
    $server_player = "??";
    $server_maxplayer = "??";
    $server_mapname = "unknown";
    $mapimg = "nomap.png";
    
    if($fp)
    {
        stream_set_timeout($fp, 2);
        
        fwrite($fp, "\xFF\xFF\xFF\xFFTSource Engine Query\x00");
        $buffer = fread($fp, 8096);
        fclose($fp);
        
        if($buffer)
        {
            $tmp = explode("\x00", $buffer);
            $place = strlen($tmp[0].$tmp[1].$tmp[2].$tmp[3].$tmp[4]) + 5;
            $version = ord($buffer[4]);
            $server_online = "<font style=\"color: green;\">Вкл.</font>";
            $server_player = ord($buffer[$place]);
            $server_maxplayer = ord($buffer[$place + 1]);
            $mapimg = "nomap.png";
            
            if($version == 109)
            {
                $server_name = $tmp[1];
                $server_mapname = $tmp[2];
            }
            else
            {
                $server_name = substr($tmp[0], 6);
                $server_mapname = $tmp[1];
            }
            
            if(file_exists("maps/". $server_mapname .".jpg")) {$mapimg = "$server_mapname.jpg";}
        }
    }
    
    function playersInfo()
    {
        $player = array();
        global $ip, $port;
        $fp = @fsockopen("udp://".$ip, $port);
        
        if($fp)
        {
            stream_set_timeout($fp, 2);
            
            fwrite($fp, "\xFF\xFF\xFF\xFF\x55\xFF\xFF\xFF\xFF");
            $buffer = fread($fp, 4096);
            
            if(trim($buffer))
            {
                fwrite($fp, "\xFF\xFF\xFF\xFF\x55".substr($buffer, 5, 4));
                $buffer = fread($fp, 4096);
                
                if($buffer)
                {
                    $player_number = 0;
                    $position = 2;
                    do
                    {
                        $player_number++;
                        $player[$player_number]['name']= "";
                        $player[$player_number]['id'] = ord($buffer[$position]);
                        $position++;
                        
                        while($buffer[$position] != "\x00" && $position < 400000)
                        {
                            $player[$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;
                        if($player[$player_number]['score'] > 100) $player[$player_number]['score'] = 0;
                        $time = substr($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;
                }
            }
        }
    }
    
    header("Content-Type: text/javascript");
    $pl_score = "''";
    $pl_time = "''";
    $players_info = playersInfo();
    $i = 0;
    echo "var pl_name = new Array(''";
    foreach($players_info as $player)
    {
        if($player["name"])
        {
            $player["name"] = str_replace("\n", "", $player["name"]);
            $player["name"] = str_replace("\r", "", $player["name"]);
            
            $i++;
            
            $pl_score .= ", '$player[score]'";
            $pl_time .= ", '$player[time]'";
            
            echo ", '". htmlspecialchars($player["name"], ENT_QUOTES) ."'";
        }
    }
    echo ");\n";
    echo "var pl_score = new Array($pl_score);\n";
    echo "var pl_time = new Array($pl_time);\n";
    echo "var players = $i;\n";
    echo "var info = {";
    echo "'ip_port':'$ip:$port', 'hostname':'$server_name', 'map':'$server_mapname', 'mapimg':'<img src=\"../images/maps/$mapimg\" alt=\"\"/>', 'players':'$server_player', 'maxplayers':'$server_maxplayer', 'status':'$server_online'";
    echo "};";
?>