nemmo\attachments\Module::getSubDirs PHP Method

    public function getSubDirs($fileHash, $depth = 3)
    {
        $depth = min($depth, 9);
        $path = '';
        for ($i = 0; $i < $depth; $i++) {
            $folder = substr($fileHash, $i * 3, 2);
            $path .= $folder;
            if ($i != $depth - 1) {
                $path .= DIRECTORY_SEPARATOR;
            }
        }
        return $path;
    }