Sonata\Component\Basket\Basket::getVatAmounts PHP Method

    public function getVatAmounts()
    {
        $amounts = array();
        foreach ($this->getBasketElements() as $basketElement) {
            $rate = $basketElement->getVatRate();
            if (isset($amounts[$rate])) {
                $amounts[$rate]['amount'] = bcadd($amounts[$rate]['amount'], $basketElement->getVatAmount());
            } else {
                $amounts[$rate] = array('rate' => $rate, 'amount' => $basketElement->getVatAmount());
            }
        }
        return $amounts;
    }