Addcartphp Num High Quality

</script> </body> </html>

// add_cart.php session_start(); // 1. Sanitize and validate inputs $product_id = isset($_POST['id']) ? (int)$_POST['id'] : 0; $num = isset($_POST['num']) ? (int)$_POST['num'] : 1; if ($product_id > 0 && $num > 0) // 2. Initialize cart if it doesn't exist if (!isset($_SESSION['cart'])) $_SESSION['cart'] = []; // 3. Update quantity if item exists, otherwise add new if (isset($_SESSION['cart'][$product_id])) $_SESSION['cart'][$product_id] += $num; else $_SESSION['cart'][$product_id] = $num; // 4. Redirect or provide feedback header("Location: view_cart.php?status=success"); else header("Location: products.php?status=error"); Use code with caution. Copied to clipboard Security and Performance Considerations PHP Base Library Documentation, Release phplib_7_2 addcartphp num high quality

if ($product) // Check if product is already in cart if (isset($_SESSION['cart'][$productId])) // Update quantity $_SESSION['cart'][$productId]['quantity'] += $quantity; else // Add product to cart $_SESSION['cart'][$productId] = [ 'name' => $product['name'], 'price' => $product['price'], 'quantity' => $quantity ]; &lt;/script&gt; &lt;/body&gt; &lt;/html&gt; // add_cart

public function __construct($pdo) $this->pdo = $pdo; if (!isset($_SESSION['cart'])) $_SESSION['cart'] = []; (int)$_POST['num'] : 1; if ($product_id > 0 &&

if ($_SERVER['REQUEST_METHOD'] === 'POST' && verifyCsrfToken($_POST['token']))