What are common methods for storing shopping cart data in PHP, such as arrays or sessions?

When developing a shopping cart in PHP, common methods for storing shopping cart data include using arrays or sessions. Arrays can be used to store the items in the cart, while sessions can be used to persist the cart data across multiple pages for a single user. 

// Storing shopping cart data using arrays
$cart = array();
// Add item to cart
$item = array(
    'id' => 1,
    'name' => 'Product 1',
    'price' => 10.00,
    'quantity' => 1
);
$cart[] = $item;

// Storing shopping cart data using sessions
session_start();
if (!isset($_SESSION['cart'])) {
    $_SESSION['cart'] = array();
}
// Add item to cart
$item = array(
    'id' => 1,
    'name' => 'Product 1',
    'price' => 10.00,
    'quantity' => 1
);
$_SESSION['cart'][] = $item;

Keywords

arrays sessions shopping cart data storage PHP

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