train::waring PHP Method

    public static function waring($msg)
    {
        $os = strtolower(PHP_OS);
        if ($os == "darwin") {
            exec('osascript -e \'display notification "' . $msg . '" sound name "Glass.aiff" with title "有票啦"\'');
        } elseif ($os == "linux") {
            exec("gnome-terminal -x bash -c \"date;echo 有票啦 {$msg}; read;\"");
        } else {
            var_dump("有票啦 {$msg}");
        }
        exit;
    }