private function getFormNodeId(\DOMElement $form)
    {
        return md5($form->getLineNo() . $form->getNodePath() . $form->nodeValue);
    }
private function getFormNodeId(\DOMElement $form)
    {
        return md5($form->getLineNo() . $form->getNodePath() . $form->nodeValue);
    }
private function getFormNodeId ( \ DOMElement $ form ) { return md5 ( $ form -> getLineNo ( ) . $ form -> getNodePath ( ) . $ form -> nodeValue ) ; }
Returns form node unique identifier.

@param \DOMElement $form

@return string
Returns form node unique identifier .