Hi David,
to output a session variables value to the page, you need to use an output function such as print() or echo().
Try changing:
<p>rates = <?php $_SESSION['PRV_rates'];?></p>
to:
<p>rates = <?php echo($_SESSION['PRV_rates']); ?></p>
Your friends over here at WebAssist! These Dreamweaver extensions will assist you in building unlimited, custom websites.
These out-of-the-box solutions provide you proven, tested applications that can be up and running now. Build a store, a gallery, or a web-based email solution.