I have protected function with php-code:
$replaceData = array(
'%userName%' => $order->getUserFullName(),
'%userEmail%' => $order->getUserEmail(),
'%userPhone%' => $order->getUserPhone(),
'%userDeliver%' => $order->getUserDeliverTo(),
'%orderId%' => $order->getId(),
'%orderKey%' => $order->getKey(),
'%orderLink%' => shop_url('cart/view/' . $order->getKey()),
);
How to save this array to xml-file using simpleXML?