while ($file = readdir($fp))
        {
            if ($file != "." && $file != "..")
            {
                $date=date('d-m-Y, H:i:s', filemtime($dir . "/" . $file)) . "<br/>";
                $dates[] = $date;
            }
        }
        rsort($dates);
        $arrlength = count($dates);
        for($x = 0; $x < $arrlength; $x++)
        {
            echo $dates[$x];
            echo "<br>";
        }```

23-05-2019, 15:36:55

23-05-2019, 15:35:35

23-05-2019, 15:33:47

23-05-2019, 15:29:30

23-05-2019, 14:54:38

23-05-2019, 14:53:52

sort it by descending order.