phpQuery::dataSetupNode PHP Method

    protected static function dataSetupNode($node, $documentID)
    {
        // search are return if alredy exists
        foreach (self::$documents[$documentID]->dataNodes as $dataNode) {
            if ($node->isSameNode($dataNode)) {
                return $dataNode;
            }
        }
        // if doesn't, add it
        self::$documents[$documentID]->dataNodes[] = $node;
        return $node;
    }