DOMDocument::loadHTML error

Question

I build a script that combines all css on a page together to use it in my cms. It worked fine for a long time now i i get this error:

Answer 1

HTML5 elements are still not supported, but you can silence libxml errors completely with the $options parameter.

Just set

$doc = new DOMDocument();
$doc->loadHTMLFile("html5.html", LIBXML_NOERROR);

This option is preferred over @ which silences PHP errors.

But be careful, libxml is very forgiving and it will parse a broken HTML document. If you silence libxml errors you might not even be aware that the HTML is malformed.