phpQueryObject::parents PHP Метод

    public function parents($selector = null)
    {
        $stack = array();
        if (!$this->elements) {
            $this->debug('parents() - stack empty');
        }
        foreach ($this->elements as $node) {
            $test = $node;
            while ($test->parentNode) {
                $test = $test->parentNode;
                if ($this->isRoot($test)) {
                    break;
                }
                if (!$this->elementsContainsNode($test, $stack)) {
                    $stack[] = $test;
                    continue;
                }
            }
        }
        $this->elementsBackup = $this->elements;
        $this->elements = $stack;
        if ($selector) {
            $this->filter($selector, true);
        }
        return $this->newInstance();
    }