Num High Quality | Addcartphp

$ip = $_SERVER['REMOTE_ADDR']; $key = "addcart_limit_$ip"; $requests = apcu_fetch($key) ?: 0; if ($requests > 10) // max 10 requests per minute die(json_encode(['error' => 'Too many add-to-cart attempts']));

// Check if requested quantity exceeds available stock if ($num > $product['stock_quantity']) die(json_encode([ 'error' => 'Insufficient stock', 'available' => $product['stock_quantity'] ])); addcartphp num high quality

// Retrieve and validate the numeric quantity 'num' $num = filter_input(INPUT_POST, 'num', FILTER_VALIDATE_INT); $product_id = filter_input(INPUT_POST, 'product_id', FILTER_VALIDATE_INT); $ip = $_SERVER['REMOTE_ADDR']

$_SESSION['cart'][$product_id]['quantity'] = $new_quantity; else // Add new product with validated num $_SESSION['cart'][$product_id] = [ 'name' => $product['name'], 'price' => $product['price'], 'quantity' => $num ]; $key = "addcart_limit_$ip"

// Validate product exists and has sufficient stock // ... proceed