The cart.php page must respect the num values stored and allow further updates.
If you are a student looking for a free alternative to verify your own work, offers plagiarism and AI detection tools. Understanding Scores: addcartphp num high quality
$num = filter_input(INPUT_POST, 'quantity', FILTER_VALIDATE_INT); if ($num === false || $num < 1) $num = 1; // default safe value The cart
function viewCart() if (isset($_SESSION['cart'])) echo "Your Cart:\n"; foreach ($_SESSION['cart'] as $productId => $product) echo "$product['name'] x $product['quantity'] = $product['price'] * $product['quantity']\n"; 1) $num = 1
For performance and scalability, high-quality systems store cart data in: