Traversing child nodes with PHP DOMXpath?

Question

I'm having some trouble understanding what exactly is stored in childNodes. Ideally I'd like to do another xquery on each of the child nodes, but can't seem to get it straight. Here's my scenario: Data:

<div class="something">
    <h3>
        <a href="link1.html">Link text 1</a>
    </h3>
    <div class"somethingelse">Something else text 1</div>
</div>
<div class="something">
    <h3>
        <a href="link2.html">Link text 2</a>
    </h3>
    <div class"somethingelse">Something else text 2</div>
</div>
<div class="something">
    <h3>
        <a href="link3.html">Link text 3</a>
    </h3>
    <div class"somethingelse">Something else text 3</div>
</div>

And the code:

$html = new DOMDocument();
$html->loadHtmlFile($local_file);
$xpath = new DOMXPath( $html );
$nodelist = $xpath->query( "//div[@class='something']");
foreach ($nodelist as $n) {
    Can I run another query here? }

For each element of "something" (i.e., $n) I want to access the values of the two pieces of text and the href. I tried using childNode and another xquery but couldn't get anything to work. Any help would be greatly appreciated!

Answer 1

Yes you can run another xpath query, something like that :

foreach ($nodelist as $n)
{
    $other_nodes = $xpath->query('div[@class="somethingelse"]', $n);

    echo $other_nodes->length;
}

This will get you the inner div with the class somethingelse, the second argument of the $xpath->query method tells to query to take this node as context, see more http://fr2.php.net/manual/en/domxpath.query.php