DefaultController::hideConfigData PHP Method

    private function hideConfigData($config, $options)
    {
        foreach ($options as $option) {
            $item =& $config;
            foreach (explode('/', $option) as $key) {
                if (is_array($item) && isset($item[$key])) {
                    $item =& $item[$key];
                } else {
                    unset($item);
                    break;
                }
            }
            if (isset($item)) {
                $item = '**********';
                unset($item);
            }
        }
        return $config;
    }