omnipay-wechat 是 omnipay 的微信支付网关扩展，提供基于 omnipay 支付框架的微信支付接口。
Installation
Omnipay is installed via Composer. To install, simply add it to yourcomposer.jsonfile:
{ "require": { "labs7in0/omnipay-wechat": "dev-master" }} And run composer to update your dependencies:
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$ curl -s http://getcomposer.org/installer | php$ php composer.phar update
Basic Usage
The following gateways are provided by this package:
- WeChat Express (WeChat JSAPI)
For general usage instructions, please see the main Omnipay repository.
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WeChat JSAPI require OAuth openid to submit a new order, use$WeChat_Express->getAuthCode($callback)to get an url for WeChat OAuth and$WeChat_Express-->getOpenid($code)in callback page to get openid.
p.s. the url for WeChat OAuth must be opened in WeChat In-App broswer, you can usestrpos($_SERVER['HTTP_USER_AGENT'], 'MicroMessenger') === falseto check if the page were not opened in it, and generate a QR code for user.
All methods for WeChat OAuth will be removed in next stable version and I'll publish a WeChat MP library package for composer.
项目主页：http://www.open-open.com/lib/view/home/1439890446520
