Addcartphp Num High Quality ((link)) -

Mastering "addcartphp num high quality": Building a High-Performance, Secure Shopping Cart in PHP

3. Displaying Cart

To display the cart contents:

function displayCart() 
    if (empty($_SESSION['cart'])) 
        echo "Cart is empty.";
        return;
echo "Your Cart:<br>";
    foreach ($_SESSION['cart'] as $item) 
        echo $item['name'] . " x " . $item['num'] . " = $" . ($item['price'] * $item['num']) . "<br>";
// Example usage
displayCart();

Table Schema

CREATE TABLE cart_items (
    id INT AUTO_INCREMENT PRIMARY KEY,
    user_id INT NOT NULL,
    product_id INT NOT NULL,
    quantity INT NOT NULL CHECK (quantity > 0),
    added_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
    UNIQUE KEY (user_id, product_id)
);

Understanding the Basics