$dirname = \"./final/factapplication\";

    function listdir($dirname) {
        $ds = opendir($dirname);
        while (false !== ($file = readdir($ds))) {
            $path = $dirname.\'/\'.$file;
            if ($file != \'.\' && $file != \'..\') {
                if (is_dir($path)) {
                    listdir($path);
                } else {
                    echo $file.\"<br>\";
                }
            }
        }
        closedir($ds);
    }
    listdir($dirname);