I am trying to count children of a DOMNode. It appears to give wrong results when I use count vs traversing or the ->length property. As if text nodes are not counted.

Consider

<?php

$html = '<p>with <a>link</a> text</p>';

$dom = new DOMDocument();
$dom->loadHTML($html, LIBXML_HTML_NOIMPLIED | LIBXML_HTML_NODEFDTD);

$paragraph = $dom->firstChild;
$count = 0;
foreach ($paragraph->childNodes as $childNode) {
    $count++;
}

echo count($paragraph->childNodes) . "n";
echo $paragraph->childNodes->length . "n";
echo $count . "n";

And the output is:

1
3
3

Is this a bug in Countable implementation of DOMNodeList?