Checkout Confirmation
On the order confirmation page we display the ordered items with the shipping and payment information provided earlier. You can't see it in the screenshot but you can be sure that the shipping and payment info is there as hidden inputs. If you don' believe just checkout the source code
If the customer want to modify the shipping/payment info she can click on the "Modify Shipping/Payment Info" and if everything is okay she click on the 'Confirm Order' button and so we begin saving the order to database.
First, we insert the shipping and payment info to tbl_order and the ordered items into tbl_order_item. We also modify the product quantity in stock. If you play with the demo you can see that this is disabled so the product quantity is always the same no matter how many items you ordered.
Next thing we do is remove the ordered items from cart table because they are no longer needed.
If the payment method is COD the customer will go immediately to the thankyou page. But when paypal is chosen the process is a bit longer. Next we'll start playing with the Paypal stuff
