For Shopping cart to be implemented on our website we have model files 'cart.php' and 'item.php'. The 'cart.php' has all the functions that need to be executed just like on a physical cart, like emptying your cart, adding an item, removing an item, or updating the price of some item in a cart. All the logic behind online shopping cart lies in these files.
You can view the items added to your cart by the help of 'shopping_cart.php' page. Session is used to store the items added to cart and displayed on the 'shopping_cart.php' page. Please observe the following screen shots to understand the working of shopping cart.
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