<?php

include 'example.inc';

$dom = domxml_open_mem($xmlstr);

$chapter = $dom->document_element();

// Regardons les éléments contenus dans "chapter"
foreach($chapter->child_nodes() as $node) {
  if ($node->node_type() == XML_ELEMENT_NODE) {
    echo $node->node_name() . "\n";
  }
}

?>