Displaying a success message on checkout page after product add

[hathead1990]

Hi all im new to the forum

 

Im trying to display a message on my checkout page when a customer successfully adds a product to the basket! For example I have a buy button on my product page, when the user clicks "buy" the page redirects to checkout.php and adds that particualr item to the basket. It would be great to display a message to the user in the checkout to inform the user that their item has been added.

 

I have attached my checkout and config files.

 

Any help would be greatly appreciated

checkout.php

config.php