Listing all images in a directory using PHP

Question

I have the code below that lists all the images in a folder, the problem is that it finds some files ( a . and a ..) that I am not sure what they are so I a

Answer 1

while (($file = readdir($handle)) !== false) {
    if (
        ($file == '.')||
        ($file == '..')
    ) {
        continue;
    }
    $newfile = str_replace(' ', '_', $file);
    rename(IMAGEPATH . $file, IMAGEPATH . $newfile);
    $directoryfiles[] = $newfile;
}