eCommerce order complete process

gistfile1.php

<?php
        // Decode the Crypt field and extract the results
        $sagePay = new SagePay_Util();
        $strDecoded = $sagePay->decodeAndDecrypt($strCrypt);
        $values = $sagePay->getToken($strDecoded);
        
        // Fire a range of actions
        $listeners = array(
            "Application_Model_Order", // Add order to database
            "SagePay_Order", // Update order with payment information
            "Application_Model_User", // Email order details
            "Application_Model_Basket", // Clear basket contents            
            "Application_Model_Product", // Decrease stock levels
        );
        foreach ($listeners as $listener)
        {
            $command = new $listener;
            $command->orderComplete($values, $this->view->basket->getId());
        } 
?>