Add-cart.php Num [ 720p ]

When PHP parses this, it creates an array: $_GET['num'] = ['$gt' => 1000] . If the NoSQL query blindly passes this to the database, the $gt (greater than) operator can bypass authentication or expose data.

Another overlooked issue: logging. Many developers log cart additions for analytics: log_message("User added " . $_GET['num'] . " of product " . $_GET['id']); add-cart.php num

While num usually refers to quantity, sometimes vulnerabilities in add-cart.php allow the user to modify the price parameter alongside the quantity. When PHP parses this, it creates an array:

Typical request patterns

// 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; While num usually refers to quantity

In modern e-commerce development, the query string is a common way to handle product additions to a virtual shopping basket. However, its usage also reveals significant security considerations that every developer and store owner should understand. What is add-cart.php?num= ?

: Ensure the product exists in your database and that the requested quantity is a positive integer.