Storing multiple values in a $_SESSION variable with PHP

Question

I\'m creating a site which has a shopping cart. I do not need any special functionality so I\'m creating the cart on my own rather than integrating any ready one. My product

Answer 1

Use the item ID as an array key, which holds an array of the other items:

// Initialize the session
session_start();

// Parent array of all items, initialized if not already...
if (!isset($_SESSION['items']) {
  $_SESSION['items'] = array();
}

// Add items based on item ID
$_SESSION['items'][$itemID] = array('Quantity' => $quantity, 'Total' => $total);
// Another item...
$_SESSION['items'][$another_itemID] = array('Quantity' => $another_quantity, 'Total' => $another_total);
// etc...

And access them as:

// For item 12345's quantity
echo $_SESSION['items'][12345]['Quantity'];

// Add 1 to quantity for item 54321
$_SESSION['items'][54321]['Quantity']++;