phprs\util\Tree::findNode PHP Method

    public function findNode(array $path, $exact_match = false, $all_req_paths = false)
    {
        $found = null;
        $full = $this->visitNode($path, function ($name, $node) use(&$found) {
            $found = $node;
            return true;
        }, $exact_match, $all_req_paths);
        return $full ? $found : null;
    }