$_SESSION['cart'][$product_id]['quantity'] = $new_quantity; else // Add new product with validated num $_SESSION['cart'][$product_id] = [ 'name' => $product['name'], 'price' => $product['price'], 'quantity' => $num ];
public function testAddToCartWithInvalidStringNum() addcartphp num high quality
// If product already in cart, update quantity (add to existing) if (isset($_SESSION['cart'][$product_id])) $new_quantity = $_SESSION['cart'][$product_id]['quantity'] + $num; $_SESSION['cart'][$product_id]['quantity'] = $new_quantity