php - 叮咚，来单提醒的思路？

Question

在顾客下单了之后，想做一个来单提醒功能，问一下大神，这个功能思路是怎么样的呀？？

Answer 1

First of all, you can use ajax polling, which is also a more commonly used method

There is also the websocket mentioned above to establish a long connection.

Answer 2

WebSocket