Add-cart.php Num [portable] -

When a user clicks "Add to Cart" on a product listing page, a POST or GET request transmits data to the server. The core parameters required by add-cart.php typically include:

// 1. Sanitize and convert the incoming parameters $productId = filter_input(INPUT_POST, 'product_id', FILTER_VALIDATE_INT); $quantity = filter_input(INPUT_POST, 'num', FILTER_VALIDATE_INT);

add-cart.php is a common script name in custom PHP e-commerce platforms designed to handle requests to add products to a user's session-based cart. The "num" suffix (short for number) typically refers to the mechanism that passes a specific quantity ( num or qty ) alongside the product ID. add-cart.php num

Always use prepared statements with parameterised queries:

If the victim clicks, their cart is associated with the attacker’s session ID. Later, the attacker can view the cart contents or manipulate the num parameter to change what the victim buys. When a user clicks "Add to Cart" on

Use a <form method="post" action="/cart/add"> with hidden fields. This naturally prevents GET-based crawling.

They send a phishing email: Click here to add to cart: https://store.com/add-cart.php?id=777&num=1&PHPSESSID=attacker_controlled The "num" suffix (short for number) typically refers

$product_id = isset($_POST['product_id']) ? (int)$_POST['product_id'] : 0; $quantity = isset($_POST['num']) ? (int)$_POST['num'] : 1;