Add-cart.php Num _verified_ May 2026
When a user clicks "Add to Cart," the system typically sends data to add-cart.php via a POST or GET request. The
Usage Examples:
- Always sanitize
numagain on the server – never trust client-side min/max.
Significance in E-commerce
Defense:
Validate that num is a scalar integer before passing it to any database driver. add-cart.php num
Vulnerability #2: Floating-Point Injection
Security and validation considerations
// Function to get product details function getProductDetails($product_id) $products = [ 1 => ['name' => 'Product 1', 'price' => 29.99, 'stock' => 50], 2 => ['name' => 'Product 2', 'price' => 49.99, 'stock' => 30], 3 => ['name' => 'Product 3', 'price' => 19.99, 'stock' => 100], ]; return isset($products[$product_id]) ? $products[$product_id] : null; When a user clicks "Add to Cart," the