Need to use PayPal for user signup

Question

I'm planning to build a Crowdfunding platform like Kickstarter using Codeigniter for my final year project. I have only 7 days left for that. I tried reading PayPal documentation but still I don't know how to integrate PayPal in to my website.

What I need to know

• Users to login in to my site using PayPal
• Name, Date of Birth, Address, E-Mail of user from PayPal API Server
• Additionally Pre-Approval Adaptive Payment for backing projects posted in my crowdfunding platform

What I have

• PayPal developer account with PayPal payments and Log In with PayPal enabled for live transactions

• Basic account at Janrain and oneall. Using Janrain I added login with PayPal button in my site. After user login using PayPal, PayPal redirected to the return URL that I specified and from that URL I got only this array(3) { ["login_tab"]=> string(6) "paypal" ["expected_tab"]=> string(6) "paypal" ["welcome_info_name"]=> string(10) "username" } by var dumping $_REQUEST

Can anyone please give me step by step guidance to complete this project.

Answer 1

First Step:

Never decide to integrate PayPal into your project with CodeIgniter(which is no longer maintained) 7 days before it is due. PayPal is not all that good on docs last time I checked and if you have no experience with a Payment API(which I assume you don't given you said 7 days to do it...) You should pick a different end of year project for sure.