Block repeat votes

[woza_uk]

Hi

I have page that allows people to submit a form (to vote on a topic), which submits the data to a MYSQL database.

This works a treat except I want to place a cookie on the users machine, so the page knows if they have voted already that month, so if they try and vote again a page comes up saying "Sorry you may only vote once a month." And the data submited doesn't get posted in the database.

It would also be nice for the cookie to expire on the 25th of every month.

I know it's big ask, but any help at all would be VERY useful!

Many many thanks
Woza
[e-mail]

[piersk]

The problem with cookies, is that they can be deleted.

Have people register to vote and then have a column in your db called "have_voted" or something like that. Set it to NULL to start with and put a 1 in it when they DO vote. Whenever someone tries to vote, check for that one and if there is a one already there then dont let them vote.

Then, at the beginning of each month (or the 25th), run a script that will turn all the 1s back to 0 (or NULLs) again.

A bit complicated, but it should work...