domxml memberfunction not dom compliant??

I might be wrong here but, here it goes: I'm trying to make a recursive function that traverses a dom tree. (The purpuse is eventually to insert it into a relational database using the "edge table approach") When doing so I make extensive use of "array DomNode->child_nodes ( void)" The returned array contains nodes of type 1(element nodes) and 3(text nodes) but not attribute nodes, allthough the elements i check has attributes. Is this dom compliant behavior? Shouldn't attribute nodes be returned by DomNode->child_nodes() as well as they are also nodes in the dom tree?? Below is some code to illustrate what i do... Vennlig hilsen Øyvind function addElements($element, $source, $conn){ if ($element->has_child_nodes()){ $element_name = $element->tagname; echo "current element: $element_name<br>"; echo "current element has child nodes<br>"; $children = $element->child_nodes(); //faulty behavior?? foreach($children as $child){ $childname = $child->tagname; $childtype = $child->node_type(); echo "childtype is $childtype<br>"; echo "childname $childname<br>"; addElements($child, $source, $conn); } }else{ //process the current node } }