/** * Render a form <input> hidden element from the provided $element * @param ElementInterface $element * @param null|string $formType * @param array $displayOptions * @return string */ public function render(ElementInterface $element, $formType = null, array $displayOptions = array()) { $this->prepareElementBeforeRendering($element, $formType, $displayOptions); $html = parent::render($element); return $html; }