DOMNode to DOMElement in php

Question

I want to convert a DOMNode object from a call to getElementsByTagName() to a DOMElement in order to access methods like getElements

Answer 1

You don't need to cast anything, just call the method:

$links = $dom->getElementsByTagName('a');

foreach ($links as $link) {
    $spans = $link->getElementsByTagName('span');
}

And by the way, DOMElement is a subclass of DOMNode. If you were talking about a DOMNodeList, then accessing the elements in such a list can be done, be either the method presented above, with a foreach() loop, either by using the item() method of DOMNodeList:

$link_0 = $dom->getElementsByTagName('a')->item(0);