PHP DOMDocument: How do I get the value of an input field

Question

How do I get the value of an input field like the one below where it does not have an ID attribute using PHP\'s DOMDocument?

Answer 1

$dom = new DOMDocument();
$dom->loadHTML($result);
$xpath = new DOMXpath($dom);
$node = $xpath->query('//input[@name="token"]/attribute::value');
$token = $node->item(0)->nodeValue;