Back button resubmitting sql (not form data).

[jtown]

On my web server when I click the back button, it looks like my mysql queries are running again. It's like the previous page isn't cached and it's rerunning all the queries. Is this a setting I need to set in mysql, php or apache?

For instance if a page has a "select * FROM table ORDER BY RAND() LIMIT 5" and I go to the next page. When I click back a new set of 5 will show up. I want it to be the same page that was created before.

Any ideas?

[Roger_Ramjet]

Have a look at your config for session-cache-limiter
Default is nocache which means in the absence of any cache directive from you that you are sending no-cache to all clients when you are using sessions, which I guess you are.
Best practice is always to specify cache control on all the pages that you ever write rather than relie on whatever happens to be the server or proxy default.

[jtown]

Ahhhh nice! Thanks! I just set it to session_cache_limiter('private_no_expire');

Any downfalls to doing this?

[Roger_Ramjet]

suck it abd see