echo "Added " . htmlspecialchars($quantity) . " of " . htmlspecialchars($product['name']);
// Calculate cart totals $cart_count = array_sum($_SESSION['cart']); $cart_total = 0; foreach ($_SESSION['cart'] as $id => $qty) $prod = getProductDetails($id); if ($prod) $cart_total += $prod['price'] * $qty; add-cart.php num
Mastering the add-cart.php num Functionality: A Complete Guide to PHP Shopping Cart Quantities echo "Added "
The add-cart.php num vulnerability serves as a critical lesson in web development: Whether it is manipulating quantities with negative integers or altering hidden form fields, robust input validation on the server is the only defense against financial logic flaws. $cart_total = 0