扫二维码跳转 - PHP 后端控制前端跳转？比如手机扫二维码支付后页面跳转。
类似的功能
- 微信（支付宝）手机支付
- 微信（qq）手机扫二维码后登入
请问如何实现？
如果可以请大概解释一下原理。
回复内容：
类似的功能
- 微信（支付宝）手机支付
- 微信（qq）手机扫二维码后登入
请问如何实现？
如果可以请大概解释一下原理。
目前情况下（ie还有很大一部分人在用），前端用Ajax轮询获取订单状态比较靠谱，京东是这么做的，大部分都是这么做的，或者高级点，根据浏览器高级程度 ，用web socket也可以。
前端使用轮询的方法来判断是否完成
消息推送
http://www.workerman.net/web-sender
原理是一样的。
php貌似有一个，head的函数可以实现url的跳转。有需要可以看看php帮助手册
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