PHP MySQL：如何仅在数据库上的数据更改时自动刷新数据

Question

Usually I make content refresh automatically with the javascript function using setInterval. But it seems ineffective because every second the content must be reloaded will take up a lot of resources.

Therefore if there is another alternative to creating an automatic refresh function only when the data has changed in the database.

Answer 1

One way to update your data would be to use Ajax in the frontend to request the data every few seconds and update it instead of reloading the page. Otherwise, you should check out socket.io (websockets)