$level3 = $_POST['level3'];
            $clientIP = $_POST['clientIP'];
            $userId = $_POST['userId'];
            $typeId = $_POST['typeId'];
            $id = $level->AddLevel($userId, $clientIP, $level1, $level2, $level3, $typeId);
            return $id;
        } else {
            if ($url === 'selectLevels') {
                $level = new Level();
                $data = $level->GetMiddleValue();
                echo json_encode(mysql_fetch_assoc($data));
            } else {
                if ($url === 'isactive') {
                    $myfile = fopen("../db/isActive.txt", "r") or die("Unable to open file!");
                    echo fread($myfile, filesize("../db/isActive.txt"));
                    fclose($myfile);
                } else {
                    if ($url === 'mainStat') {
                        $level = new Level();
                        $data = $level->GetMainStatistic();
                        $result = array();
                        while ($row = mysql_fetch_assoc($data)) {
                            $result[] = $row;
                        }
                        echo json_encode($result);
                    }
                }
            }
        }
    }
}