Site::addFolder

static function addFolder(int $siteId, array $fields): PublicActionResult
{
	$result = new PublicActionResult();
	$error = new \Bitrix\Landing\Error;
	if (!($fields['PARENT_ID'] ?? null))
	{
		$fields['PARENT_ID'] = null;
	}
	$addResult = SiteCore::addFolder($siteId, $fields);

	if ($addResult->isSuccess())
	{
		$result->setResult($addResult->getId());
	}
	else
	{
		$error->addFromResult($addResult);
		$result->setError($error);
	}

	return $result;
}