#Unionpay PHP API

##Introduction

Unionpay PHP API is a simple and easy-to-use interface to implement web-based Unionpay online payment modules written in PHP. This project includes PHP logics and front-end JavaScript API.

Author: Chion82 sdspeedonion@gmail.com

##Feature

• Say good-bye to the fucking super-complex Unionpay documentation which also contains errors.

• Many bugs in the official Unionpay online payment SDK have been fixed.

• All sensitive data from the client such as bank card number and password will be RSA-encrypted by JS API in case http packages are captured by hackers.

##Usage

• Generate RSA keys by running: (Those keys are used for AJAX encryption.)

$ openssl genrsa -out rsa_4096_priv.pem 4096
$ openssl rsa -pubout -in rsa_4096_priv.pem -out rsa_4096_pub.pem

• Copy rsa_4096_pub.pem to api/unionpay/pubkey/rsa_4096_pub.pem .

• Follow the comments and implement functions at api/unionpay/custom_func.php .

• Configurate the Unionpay online payment parameters by modifying the constants located at api/unionpay/func/SDKConfig.php .

• Upload all files to the root directory of your web project and test your configurations by browsing /test.php .

• Checkout the commented out JavaScript demo code at /test.php and test those demo API calls using your browser console. The callback data of each JS API will be alerted.

• By now you have knowledges of how the callback data of the JS APIs located at js/unionpay_lib.js looks like, just import this JS lib and write your own front-end payment code. All input parameters of those JS APIs can be found at js/unionpay_lib.js as comments.

##Changelog

• Add translated usage guide in source code comment.

• Change all constants at api/unionpay/func/SDKConfig.php to global variables in case the PHP version on the server is too low.