Popup window with different text by time, how to do?

Question

PHP

Good day
Actually, there is a site on modx in one of the blocks, a window like the purchase of the goods "Peter bought a teapot" should pop up, these messages should simply be set in a file or admin panel and not be repeated when the page is refreshed, it is advisable to take into account either the cookie or the user's ip and not show him again what he has already seen and periodically update once a minute or more
, for example, the zakaz.txt file:
1. Petya bought a kettle
2. Vasya bought a phone
3. Ioan Vasilievich bought a rack
on what and how exactly to implement this no, i'll be very grateful if you can help

Answer 1

in php to the database write to which ip this message has already been shown