/** * InvoiceRow constructor. * * @param string $articleId * @param string $description * @param int $quantity * @param float $unitPrice * @param float $vat */ public function __construct($articleId, $description, $quantity, $unitPrice, $vat) { parent::__construct($articleId, $description, $quantity); $this->UnitPrice = $unitPrice; $this->VAT = $vat; }