link qr code to credit card, paypal, w/e
I am working on an app for businesses

What I want to be able to do is let users enter their credit card, paypal into the app and generate a qr code that links to their credit card.  Then when the user goes into a business the user uses a special scanner to scan their qr code. Obviously this scanner would have to hook into their current pos sytem. This is for all businesses so I don't know the exact pos system the business would be using. 

Its not just a mobile payment app but their is info I can't disclose.. I need to do this because the payment needs to pass through us as well as the business.  Any ideas are welcome. Thanks!
link qr code to credit card, paypal, w/e
===

I am working on an app for businesses

What I want to be able to do is let users enter their credit card, paypal into the app and generate a qr code that links to their credit card.  Then when the user goes into a business the user uses a special scanner to scan their qr code. Obviously this scanner would have to hook into their current pos sytem. This is for all businesses so I don't know the exact pos system the business would be using. 

Its not just a mobile payment app but their is info I can't disclose.. I need to do this because the payment needs to pass through us as well as the business.  Any ideas are welcome. Thanks!