Caching mysql data?

[curb]

I don't know if this would be caching or something else but how would I let the user view pulled mysql queries and have the data stay the same after a certain amount of time. I have a counter and I'm trying to avoid users seeing the number go up every time they refresh (impressions, not unique). Something like the database updating every X amount.

[nemonoman]

Simplest method would be to use a cookie created on the user's first impression. Check for the cookie. If no cookie, update the counter and create the cookie.