Formal\Element::setOption PHP 메소드

    function setOption($sOptionName, $sOptionValue)
    {
        $this->aOptions[$sOptionName] = $sOptionValue;
    }

 public function declareError(\Formal\Element $oElement, $sMessage = "")
 {
     $this->aErrors[] = array("element" => $oElement, "message" => $sMessage);
     $oElement->setOption("error", TRUE);
 }