Donate intergration?

[LeCeejay]

I want to make a paypal donate button (Already made) but when they donate certain amounts, I want it to update in a mysql database

E.G

A user logs in to a UCP, accesses the "donate" page, puts in "£5" to donate and then donates such, gets a thanks page from paypal and gets redirected to the thanks page from my site which then updates the mysql database via

searching for the user logged in via session to input the amount they donated (this case 5) but x by 10, i have a rough idea it's just the sessions and that mainly

 

[tyr0ne]

with the paypal api, when they get redirected back to your site, you can access the amount they donated.

it's safer that way so someone doesn't just input an amount, click the button and then skip the paypal to come back to your site and bam, do whatever it is people that donate can do.