How to implement paypal in facebook application canvas using PHP?

Question

I want the user to subscribe my app in two ways means there are two choices say 200$ and 350$ subscription are available. Firstly I want to direct them to Paypal inside the canvas and then return to the app's page.I want to use PHP libraries ..

Answer 1

See:

Adding Paypal to your site with PHP

Also have a look at:

phpPaypalPro

Answer 2

Could you just implement PayPal as you would any other PHP application, and then specify the return_url parameter when your form's posted to PayPal as your Facebook app's URL?