php – Allowing only one vote per person on a voting system

I\’m working on a little posting system so I can post posts on my site and people can like and dislike it.

It looks like this:

At the moment you can upvote and downvote as many times as you would like. I know how to make the images not clickable with JavaScript but I also need a way to do this in PHP because someone could just make the buttons clickable again with fireBug or the Chrome Console.

This is probable the first thing i\’m actually making in PHP so i\’m still a beginner. Thanks for any suggestions.

Rating: 5 out of 5 based on 3 ratings

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