Prevent Form resubmission upon hitting back button

Question

I have searched many posts here and elsewhere but can\'t seem to find a solution to my problem. I have a page which displays database entries: database.php. These entries c

Answer 1

I know this question is old, but having this issue myself, two lines I've discovered that works are:

header("Cache-Control: no cache");
session_cache_limiter("private_no_expire");