Array
(
    [0] => .
    [1] => ..
    [2] => 1.txt
    [3] => 2.txt
    [4] => 3.txt
)
<br>
Array
(
    [0] => 3.txt
    [1] => 2.txt
    [2] => 1.txt
    [3] => ..
    [4] => .
)