/**
* Renders form begin.
* @return string
*/
public static function renderFormBegin(Form $form, array $attrs, $withTags = TRUE)
{
$form->fireRenderEvents();
foreach ($form->getControls() as $control) {
$control->setOption('rendered', FALSE);
}
$el = $form->getElementPrototype();
$el->action = (string) $el->action;
$el = clone $el;
if ($form->isMethod('get')) {
$el->action = preg_replace('~\\?[^#]*~', '', $el->action, 1);
}
$el->addAttributes($attrs);
return $withTags ? $el->startTag() : $el->attributes();
}