is there a way of increasing a number automatically when the field is updated. I want to have a voting form that just adds 1 each time a user submits.
If i output the last number into a hidden field and add 1 it is possible that if someone has the page open for a long time other users could vote and the number stored in their form would be lower than the current number submitted by other users.
any ideas appreciated. oh iam using php and mysql