PHP DOMDocument, finding specific elements

Question

I\'m looking to find a specific attribute of a specific element in an HTML document using PHP DOMDocument.

Specifically, there is a div with a unique class set, and

Answer 1

You have to use DOMXPAth class

$doc = new DOMDocument; 
// We don't want to bother with white spaces
$doc->preserveWhiteSpace = false;

$doc->loadHTML($htmlSource);

$xpath = new DOMXPath($doc);

// We starts from the root element
$query = '//div[@class= uniqueClass]/span';

$entries = $xpath->query($query);

$spanStyle = $entries->current()->getAttribute('style')

Answer 2

$xpath = new DomXPath($doc);
$result = $xpath->evaluate('//div[@class=uniqueClass]/span/@style');