使用php DOMDocument进入子节点

Question

I know this has been asked a few times before but I really can't seem to figure it out from other examples on here.

    $classname = "gallery2";
    $pageDOM = new DOMDocument();
    $pageDOM->loadHTML($kl);

    $xpath = new DOMXPath($pageDOM);
    $ul = $xpath->query("//ul[@class='$classname']");
    $ulNode = $ul->item(0);

    $ulHTML = new DOMDocument();

    $ulHTML->appendChild($ulHTML->importNode($ulNode, TRUE));
    $ulHTMLsaved = $ulHTML->saveHTML();

var_dump on $ulHTMLsaved returns all the markup that I want, but then how do I do a foreach and get into to a child node from the existing variable that I've set?

$ulHTMLsaved contains something like the following & I want to grab various attributes from other nodes nested within all the li nodes.

<ul>
    <li>
        <figure>
            <a>
                <img src="img.jpg" alt="">
            </a>
        </figure>
    </li>
    <li>
        <figure>
            <a href="">
                <img src="img.jpg" alt="">
            </a>
        </figure>
    </li>
</ul>

Answer 1

You can get into child elements by searching for them with the following:

getElementsByTagName

getElementById

There will probably be a more generic one too for classes similar to javascript's querySelectorAll , but not sure what that is currently.