pQuery\Html5Parser::parse_hierarchy PHP Метод

    protected function parse_hierarchy($self_close = null)
    {
        $tag_curr = strtolower($this->status['tag_name']);
        if ($self_close === null) {
            $this->status['self_close'] = $self_close = isset($this->tags_selfclose[$tag_curr]);
        }
        if (!($self_close || $this->status['closing_tag'])) {
            //$tag_prev = strtolower(end($this->hierarchy)->tag);
            $tag_prev = strtolower($this->hierarchy[count($this->hierarchy) - 1]->tag);
            if (isset($this->tags_optional_close[$tag_curr]) && isset($this->tags_optional_close[$tag_curr][$tag_prev])) {
                array_pop($this->hierarchy);
            }
        }
        return parent::parse_hierarchy($self_close);
    }