Using of a cookie is unsafe because it can be deleted by user. It is better to safe the last voting time of users in database. So you can manage the possibility of votings by a db query.
(2017-02-15, 05:02 PM)SvePu Wrote: [ -> ]Using of a cookie is unsafe because it can be deleted by user. It is better to safe the last voting time of users in database. So you can manage the possibility of votings by a db query.
How can I do? Or how can I make by ip?