add-cart.php and the num ParameterFile: add-cart.php
Purpose: Server-side script to add a product to a user's shopping cart.
Key Parameter: num – represents the quantity of the product to be added.
, used by researchers or attackers to find vulnerable e-commerce sites. Sites using simple parameters like without proper SQL injection protection can be susceptible to data breaches or unauthorized access. Course Hero code example of how to securely handle this parameter in PHP? add-cart.php num
used in e-commerce websites to identify which product is being added to a virtual shopping cart. Course Hero Script Functionality In this context, add-cart.php is the file that processes the "add to cart" action, and Technical Write-Up: add-cart
// Get request parameters $product_id = isset($_REQUEST['id']) ? (int)$_REQUEST['id'] : 0; $quantity = isset($_REQUEST['num']) ? (int)$_REQUEST['num'] : 1; $response_type = isset($_SERVER['HTTP_X_REQUESTED_WITH']) && $_SERVER['HTTP_X_REQUESTED_WITH'] == 'XMLHttpRequest' ? 'json' : 'html'; , used by researchers or attackers to find
The num parameter (or qty) specifically refers to the quantity of the item being added.
Lack of Server-Side Verification: Relying on client-side values for final price calculations rather than re-verifying against the database on the server. Recommended Best Practices