Scan2Pay is a simple and fast payment gateway for wechat and alipay, only support qr code / image scan, written in php.

Scan page snapshot:

• Use redis and local file to save data
• Small and quick
• User should input a short order number as payment remark
• You can update order status
• You can view orders by day, month, year

You need get PHP, php-pecl-redis, php-fpm, nginx and redis ready first.

Such as install commands in CentOS:

yum -y install php php-fpm php-pecl-redis nginx redis

Then follow the steps:

1. Download source code
2. Replace the qr image with your wechat and alipay qr image in the directory: /www/img/
3. Create directory /runtime and add write permission to php-fpm
4. Config your web server with a domain, example in Nginx.conf.md

That's all, now visit your domain to get start.

Config file: conf/appConfig.php

• Wechat qr image file path
• Alipay qr image file path
• Password of administrator
• Notify url to update order status when it's changed

Http api to create new order and scan to pay.

Url: api/createorder

Method: POST

Parameters:

price       - Amount of CN Yuan (RMB)
order_id    - [optional] Id of the order
user_id     - [optional] Id of the user

If you call api/createorder with pamameter order_id and there is notify url, the order status will post to the notify url when the order status is changing to paid or refund.

Url: http(s)://yourdomain/notifyurl

Method: POST

Parameters:

order_id    - Id of the order
status      - Status: paid / refund
user_id     - [optional] Id of the user

Parameter "USC::$app" and "$viewData" always can be used in the view file.

<?php
print_r(USC::$app);
print_r($viewData);
?>

Core class directory: lib/

• DataFactory - Get, Save data from redis and local file
• OrderFactory - Get, Save orders, and order status update