Unique user?

From: Date: Fri, 19 Aug 2005 12:36:06 +0000
Subject: Unique user?
Groups: php.general 
Request: Send a blank email to php-general+get-220938@lists.php.net to get a copy of this message
Hi there! Is there any way of doing this: 1. User may vote 1-10 on a joke on a site X. 2. Same User may NOT vote again dependent of the computer... I know this works if I check IP-adress, but because some users doesn't have a fixed ip-adress... it won't work correct. Thought of getting a mac-adress, but I think is impossible to... :-) Any ideas? /G @varupiraten.se

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