Stack Overflow / reddit voting system in php
I'm looking for examples of how to implement a StackOverflow / reddit voting system in php. Basically I want the Up and Down arrow box. Are there any good examples out there? There are lots of scripts out there but it's not too hard to do yourself. I've used jQuery (to handle AJAX) and a small PHP script before. For example, some pseudo-code: // Some checking for recent votes from this user is appropriate here if (isset($_POST['voteType'], $_POST['postId']) && $user->loggedIn) { // insert vote into database if not already inserted echo json_encode(array('error' => false)); } else { // bad