I developed a form for my phpbb forum whose method is POST and action is PHP_SELF. Upon pressing submit the users data is entered into a table. I have code written to check if the user has already submitted the form as I don't want each individual user submitting the form more than once.
Everything works great, except for when the user presses the back button after submitting the form. This allows the user to enter the form multiple times. I read something that this is unique to IE - any way to get around this??
