public function render() { $form = new Form('login'); $form->addTextElement('username'); $form->addPasswordElement('password'); $form->addSubmitElement('Login'); $alert = ''; if (Session::getFlash('msg')) { $alert = new HtmlElement('div', ['class' => 'alert alert-error'], Session::getFlash('msg')); } return new RenderGroup('<h1>Please Login</h1>', $alert, $form); }