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Posted by Rauch Christian on 11/16/05 15:58
DNC_TN schrieb:
> I'm VERY new at php. I was wondering what method I could use to
> develop a poll system where people could vote on something and I could
> count the vote and display results. Also, make it so that only one
> vote per person would count [yes I know some could use proxies to vote
> more than once, but at least get 99% of duplicates out of the
> results].
>
1. block on Cookie. Very easy to vote again
2. block on IP-Adress. Easy to vote again and you do not give people
behind a NAT any chance to vote. Do only block an IP for max 24 hours.
3. Have your users login and save the userid, which has voted already.
This is the most safe, but the most annoying method.
hth,
Rauch Christian
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