Simple PHP Stripe Checkout Integration

i need a simple php script to integrate with stripe checkout, that will send a $ value and a transaction id to the gateway and check on return that payment is complete, everything else is handled by my system the only thing i need to to process a single $ amount transaction and verify it's paid on the success page, i like to be the most basic possible and not have external dependencies outside of the stripe php class as I am oldschool and not so comfortable with the new dev trends, I would also like that stripe does not collect any personal information from the customer outside of what is necessary to process the payment including email if possible as this is handled on my side and I have products that you can order without giving out your email

as more details my system handles the calculations and information collection from the customer in a php "pre-gateway" page and the transaction details is inserted in my database with a txok=0, in which i have the variable $total, object name and the transaction identifier as a uuid

and uppon return the php "post-gateway" script redirects to the proper delivery page if the txok=1, so what I need here is the code to check that money is there and transaction is complete so i can change the txok value to 1 and process further