How to parse xml (in php)?

Question

PHP

I am working with a certain API
. The API responds to my request in xml format.
Usually the response comes like this:

<?xml version="1.0" ?>
<root numrecords="3">
  <node1 index="0" result="0" saleid="98556" ticketbarcode="39040056074800160611" />
  <node2 index="1" result="0" saleid="98557" ticketbarcode="22040058074800160611" />
  <node3 index="2" result="0" saleid="98558" ticketbarcode="10040060074800160611" />
</root>

There are no problems here, I do something like this:

// $result - сюда приходит ответ в виде xml
  $dom = new DomDocument();
  $dom->loadXML($result);
  $root = $dom->documentElement;
  $nodes = $root->childNodes;
  foreach($nodes as $node) {
     echo $node->getAttribute("ticketbarcode");
  }

But sometimes (actually often) something goes wrong and I get xml in a different format:

<?xml version="1.0" ?>
<root numrecords="3">
  <node1 index="0" result="0" saleid="98556" ticketbarcode="39040056074800160611">
    <node2 index="1" result="0" saleid="98557" ticketbarcode="22040058074800160611">
      <node3 index="2" result="0" saleid="98558" ticketbarcode="10040060074800160611">
      </node3>
    </node2>
  </node1>
</root>

and everything breaks...
It's useless to argue with API developers....
Maybe someone knows how to get all child elements regardless of their nesting level?

Answer 1

Try this instead:
here it is:
$nodes = $root->getElementsByTagName('*');