products.php

<?php

/** @var int $id_product */

/** @var float $product_price */

use DynamicProduct\classes\DynamicTools;
use DynamicProduct\classes\module\DynamicCalculator;

if(isset($vat)) {
    $dynamicCalculator = new DynamicCalculator(DynamicTools::getModule(), DynamicTools::getContext());
    $vat = $dynamicCalculator->getTax($id_product);
}