Piwik\Common::json_encode PHP 메소드

    public static function json_encode($value)
    {
        return @json_encode($value);
    }

 public function index()
 {
     $view = new View('@Widgetize/index');
     $view->availableWidgets = Common::json_encode(WidgetsList::get());
     $this->setGeneralVariablesView($view);
     return $view->render();
 }