Wrap DOM Element In Another DOM Element In PHP

I originally asked a question along these lines using Regex but was recommended to use the PHP DOM library instead... which is superior, but I am still stuck. Basically, I want to

Solution 1:

Why bother with re-creating the node? Why not just replace the node? (If I understand what you're trying to do)...

if($spancount == 0){
    $element = $doc->createElement('span');
    $element->setAttribute('style','color:#ffffff;');
    $tag->parentNode->replaceChild($element, $tag);
    $element->apendChild($tag);
}

Edit Whoops, it looks like you're trying to wrap everything under $tag in the span... Try this instead:

if($spancount == 0){
    $element = $doc->createElement('span');
    $element->setAttribute('style','color:#ffffff;');
    foreach ($tag->childNodes as $child) {
        $tag->removeChild($child);
        $element->appendChild($child);
    }
    $tag->appendChild($child);
}

Edit2 Based on your results, it looks like that foreach is not completing because of the node removal... Try replacing the foreach with this:

while ($tag->childNodes->length > 0) {
    $child = $tag->childNodes->item(0);
    $tag->removeChild($child);
    $element->appendChild($child);
}

Solution 2:

This is great information, and sorry to come so late into the party, but there's one error for me... at the end:

$tag->appendChild($child);

should be

$tag->appendChild($element);

That's the only way I could get this to work.