Prevent Your CSS and JavaScript Files From Being Cached

<link href="/stylesheet.css?<?php echo time(); ?>" rel="stylesheet" type="text/css" /&glt;
<-- RENDERS -->
<link href="/stylesheet.css?1234567890" rel="stylesheet" type="text/css" /&glt;

<script type="text/javascript" src="/site-script.js?<?php echo time(); ?>"></script>
<-- RENDERS -->
<script type="text/javascript" src="/site-script.js?1234567890"></script>