testfile written:
Array
(
    [0] => .
    [1] => ..
    [2] => downloads
    [3] => geheim.txt
    [4] => geheim_all.txt
    [5] => index.php
    [6] => testfile_20251113_194832ms
    [7] => testfile_20251117_213737ms
    [8] => testfile_20251120_032802ms
    [9] => testfile_20251122_185041ms
    [10] => testfile_20251125_105005ms
    [11] => testfile_20251216_105041ms
    [12] => testfile_20251218_164847ms
    [13] => testfile_20251220_173631ms
    [14] => testfile_20251223_143324ms
    [15] => testfile_20251226_211145ms
    [16] => testfile_20260101_094310ms
    [17] => testfile_20260103_235059ms
    [18] => testfile_20260107_030225ms
    [19] => testfile_20260109_123006ms
    [20] => testfile_20260111_162519ms
    [21] => tmp
    [22] => uploads
)