More than 506 grocery lists and shopping lists that you can download and print.
$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']));
$config = [ 'cart' => [ 'max_items_per_product' => 999, 'allow_decimal_quantities' => false, 'stock_validation_enabled' => true, ] ];
// Validate product exists and has sufficient stock // ... proceed
Validate that the product_id and quantity are present, numeric, and safe to use. addcartphp num high quality
if (!empty($_SESSION['cart'])) $ids = array_keys($_SESSION['cart']); $placeholders = implode(',', array_fill(0, count($ids), '?')); $stmt = $pdo->prepare("SELECT id, name, price, image_url FROM products WHERE id IN ($placeholders)"); $stmt->execute($ids); $products = $stmt->fetchAll(PDO::FETCH_ASSOC); foreach ($products as $product) $qty = $_SESSION['cart'][$product['id']]; $subtotal = $product['price'] * $qty; // render row...
function displayCart() if (empty($_SESSION['cart'])) echo "Cart is empty."; return;
remove_from_cart.php :
echo json_encode([ 'success' => true, 'cart_count' => array_sum(array_column($_SESSION['cart'], 'quantity')), 'message' => "Added $num item(s) to cart." ]);
Before handling any cart logic, establish a secure session environment. Place this configuration at the very top of your script or within a global initialization file.
public function testAddItemWithValidIntegerQuantity() remove_from_cart.php : echo json_encode([ 'success' =>
// Validate: must be numeric, >0, and within limits if (!is_numeric($cleanQty) || $cleanQty <= 0) throw new InvalidArgumentException('Quantity must be a positive number.');
if (!$product) die(json_encode(['error' => 'Product not found']));