Pimcore\Model\Document\Tag\Areablock::renderIndex PHP Method

    public function renderIndex($index)
    {
        $this->start();
        $this->currentIndex = $this->indices[$index];
        $this->current = $index;
        $this->blockConstruct();
        $this->blockStart();
        $this->content();
        $this->blockDestruct();
        $this->blockEnd();
        $this->end();
    }