如果数据库值在特定时间段之前更改，如何停止代码

Question

I am using PHP and mySQL, in my 'users' table, I have HWID value. With every login, the HWID updates. How do I limit their ability in login to only use 1 HWID in 3 days? If HWID got updated with a different value within 3 days, it stops them from logging in?

Answer 1

One way to accomplish that would be to have an additional field in your users table called something like update_date that keeps track of when the last time the HWID was updated. If the update_date field is still within 3 days of the last updated time, then do not let them log in.

If you provide some of your code we could take a look and work from there.