I think the reason why this plugin would not be so simple is because the developer has to implement a system to prevent people from artificially increasing the votes.
Otherwise, the code for each vote link would just lead to something like:
vote.php?id=9
Where ‘9’ is the ID of the post.
The php for vote.php would use a MySQL query to pull a new column from the database (let’s call it voteid), and increase the post’s vote ID by one. Something simple like this:
$voteid=++;
That ++ increases the current score by one.
Then, the template would only have to be modified to link to that vote.php URL and also echo the $voteid variable from the database to display the score.
If you didn’t care about someone messing with the scores, these changes could easily be implemented.
