PHP实现微信扫码支付的方法:首先把SDK引入项目中;然后在SDK中lib目录下的“WxPay.Config.php”中修改配置项;最后根据微信通知的结果去处理业务逻辑即可。
PHP实现微信扫码支付
PHP的SDK地址 :https://pay.weixin.qq.com/wiki/doc/api/download/WxpayAPI_php_v3.zip
流程图链接地址 :https://pay.weixin.qq.com/wiki/doc/api/native.php?chapter=6_5
微信小程序支付 :https://blog.csdn.net/wskaitt/article/details/80284656
把SDK引入你的项目中
在SDK中lib目录下的WxPay.Config.php中,修改你的配置项
1. 在你网站的web页面,进行订单的提交,在后台生成你的订单信息(未支付状态)
2. 根据你的订单信息,去调用SDK中的统一下单API
3. 调取到统一下单API后,会生成预支付交易,返回预支付交易链接(也就是二维码链接)
4. 把预支付链接和你需要展示给用户的相关订单信息返回给web端,由web端展示给用户
5. 用户进行扫码支付并确认支付后,微信官方会返回给用户支付结果
6. 微信官方异步通知我们用户的支付结果
7. 根据微信通知的结果去处理我们的业务逻辑()
在这里可能有的小伙伴获取不到微信通知结果(这个原因暂时不清楚)
在你设置的notify路径中 使用 file_get_contents("php://input"); 来获取结果是没有问题的
结果集是xml格式,可以使用一下方法将xml转换成array
在做测试的时候,可把结果集转为json格式,输出到日志中,方便我们知道是否获取到通知结果
根据获取到的结果集去处理订单状态。处理完成之后返回给微信一个SESSUCE 或者FAIL
由于微信会在30分钟内异步通知8次。我本人在返回给微信接收状态的时候,微信还是一直给我通知
以上代码未生效。所以我在处理的时候根据订单号加了一个缓存,在订单处理成功的时候,根据订单号创建一个缓存,设置的生效时间为1小时(微信通知只有30分钟,时间完全够),在入口位置判断是否存在这个订单,如果有的话就说明已经处理过了,直接返回不进行处理。这样就解决了我的问题。
最后 在处理订单完之后,还需要通过前端调用一个接口,在平台返回给用户是否支付成功
更多相关知识,请访问PHP中文网!

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