XMLSecurityDSig::getValidatedNodes PHP Method

    public function getValidatedNodes()
    {
        return $this->validatedNodes;
    }

 /**
  * Check the Signature in a XML element.
  *
  * This function expects the XML element to contain a Signature-element
  * which contains a reference to the XML-element. This is common for both
  * messages and assertions.
  *
  * Note that this function only validates the element itself. It does not
  * check this against any local keys.
  *
  * If no Signature-element is located, this function will return FALSE. All
  * other validation errors result in an exception. On successful validation
  * an array will be returned. This array contains the information required to
  * check the signature against a public key.
  *
  * @param  DOMElement  $root The element which should be validated.
  * @return array|bool An array with information about the Signature-element.
  * @throws Exception
  */
 public static function validateElement(DOMElement $root)
 {
     /* Create an XML security object. */
     $objXMLSecDSig = new XMLSecurityDSig();
     /* Both SAML messages and SAML assertions use the 'ID' attribute. */
     $objXMLSecDSig->idKeys[] = 'ID';
     /* Locate the XMLDSig Signature element to be used. */
     $signatureElement = self::xpQuery($root, './ds:Signature');
     if (count($signatureElement) === 0) {
         /* We don't have a signature element ot validate. */
         return FALSE;
     } elseif (count($signatureElement) > 1) {
         throw new Exception('XMLSec: more than one signature element in root.');
     }
     $signatureElement = $signatureElement[0];
     $objXMLSecDSig->sigNode = $signatureElement;
     /* Canonicalize the XMLDSig SignedInfo element in the message. */
     $objXMLSecDSig->canonicalizeSignedInfo();
     /* Validate referenced xml nodes. */
     if (!$objXMLSecDSig->validateReference()) {
         throw new Exception('XMLsec: digest validation failed');
     }
     /* Check that $root is one of the signed nodes. */
     $rootSigned = FALSE;
     /** @var DOMNode $signedNode */
     foreach ($objXMLSecDSig->getValidatedNodes() as $signedNode) {
         if ($signedNode->isSameNode($root)) {
             $rootSigned = TRUE;
             break;
         } elseif ($root->parentNode instanceof DOMDocument && $signedNode->isSameNode($root->ownerDocument)) {
             /* $root is the root element of a signed document. */
             $rootSigned = TRUE;
             break;
         }
     }
     if (!$rootSigned) {
         throw new Exception('XMLSec: The root element is not signed.');
     }
     /* Now we extract all available X509 certificates in the signature element. */
     $certificates = array();
     foreach (self::xpQuery($signatureElement, './ds:KeyInfo/ds:X509Data/ds:X509Certificate') as $certNode) {
         $certData = trim($certNode->textContent);
         $certData = str_replace(array("\r", "\n", "\t", ' '), '', $certData);
         $certificates[] = $certData;
     }
     $ret = array('Signature' => $objXMLSecDSig, 'Certificates' => $certificates);
     return $ret;
 }