PHP - 等待2个小时来执行查询

Question

I am making my recovery password system and I need PHP to wait 2 hours and then UPDATE a specific row in the database's table, how would I do this?

Answer 1

Store the start time on the user's row, then have a cron job that runs every 5 minutes or so and queries for ones that need to be updated.

OR - when you need to access the data that should have been updated at 2 hours past, check that time and see if it's more than 2 hours, do the update, then get the data.