How are we supposed to check the value for the following HTML5 attributes?
<input type="text" required />
Or this:
<video src="" autoplay></video>
This is the code I use:
$dom->loadHTML($html);
$xpath = new DOMXPath($dom);
$result = $xpath->query('//input');
foreach($result as $item) var_dump($item->getAttribute('required'));
The required attribute may or may not be set, the result stays the same:
string(0) ""
If getAttribute would return null instead of an empty string when the attribute is not defined it would make more sense.
I am aware we can use something like required="required" but I can't be sure that the attribute is in that form since the code that gets parse may differ.
