app\CertificateHandler::rmrf PHP Method

    private function rmrf($target)
    {
        $files = array_diff(scandir($target), array('.', '..'));
        foreach ($files as $file) {
            is_dir("{$target}/{$file}") && !is_link($target) ? $this->rmrf("{$target}/{$file}") : unlink("{$target}/{$file}");
        }
        return rmdir($target);
    }