diff -r 5b37998e522e -r 162c1de6545a web/lib/Zend/Serializer/Adapter/Wddx.php
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/web/lib/Zend/Serializer/Adapter/Wddx.php	Fri Mar 11 15:05:35 2011 +0100
@@ -0,0 +1,118 @@
+<?php
+/**
+ * Zend Framework
+ *
+ * LICENSE
+ *
+ * This source file is subject to the new BSD license that is bundled
+ * with this package in the file LICENSE.txt.
+ * It is also available through the world-wide-web at this URL:
+ * http://framework.zend.com/license/new-bsd
+ * If you did not receive a copy of the license and are unable to
+ * obtain it through the world-wide-web, please send an email
+ * to license@zend.com so we can send you a copy immediately.
+ *
+ * @category   Zend
+ * @package    Zend_Serializer
+ * @subpackage Adapter
+ * @copyright  Copyright (c) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com)
+ * @license    http://framework.zend.com/license/new-bsd     New BSD License
+ * @version    $Id: Wddx.php 20574 2010-01-24 17:39:14Z mabe $
+ */
+
+/** @see Zend_Serializer_Adapter_AdapterAbstract */
+require_once 'Zend/Serializer/Adapter/AdapterAbstract.php';
+
+/**
+ * @link       http://www.infoloom.com/gcaconfs/WEB/chicago98/simeonov.HTM
+ * @link       http://en.wikipedia.org/wiki/WDDX
+ * @category   Zend
+ * @package    Zend_Serializer
+ * @subpackage Adapter
+ * @copyright  Copyright (c) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com)
+ * @license    http://framework.zend.com/license/new-bsd     New BSD License
+ */
+class Zend_Serializer_Adapter_Wddx extends Zend_Serializer_Adapter_AdapterAbstract
+{
+    /**
+     * @var array Default options
+     */
+    protected $_options = array(
+        'comment' => null,
+    );
+
+    /**
+     * Constructor
+     * 
+     * @param  array $opts 
+     * @return void
+     * @throws Zend_Serializer_Exception if wddx extension not found
+     */
+    public function __construct($opts = array())
+    {
+        if (!extension_loaded('wddx')) {
+            require_once 'Zend/Serializer/Exception.php';
+            throw new Zend_Serializer_Exception('PHP extension "wddx" is required for this adapter');
+        }
+
+        parent::__construct($opts);
+    }
+
+    /**
+     * Serialize PHP to WDDX
+     * 
+     * @param  mixed $value 
+     * @param  array $opts 
+     * @return string
+     * @throws Zend_Serializer_Exception on wddx error
+     */
+    public function serialize($value, array $opts = array())
+    {
+        $opts = $opts + $this->_options;
+
+        if (isset($opts['comment']) && $opts['comment']) {
+            $wddx = wddx_serialize_value($value, (string)$opts['comment']);
+        } else {
+            $wddx = wddx_serialize_value($value);
+        }
+
+        if ($wddx === false) {
+            $lastErr = error_get_last();
+            require_once 'Zend/Serializer/Exception.php';
+            throw new Zend_Serializer_Exception($lastErr['message']);
+        }
+        return $wddx;
+    }
+
+    /**
+     * Unserialize from WDDX to PHP
+     * 
+     * @param  string $wddx 
+     * @param  array $opts 
+     * @return mixed
+     * @throws Zend_Serializer_Exception on wddx error
+     */
+    public function unserialize($wddx, array $opts = array())
+    {
+        $ret = wddx_deserialize($wddx);
+
+        if ($ret === null) {
+            // check if the returned NULL is valid
+            // or based on an invalid wddx string
+            try {
+                $simpleXml = new SimpleXMLElement($wddx);
+                if (isset($simpleXml->data[0]->null[0])) {
+                    return null; // valid null
+                }
+                $errMsg = 'Can\'t unserialize wddx string';
+            } catch (Exception $e) {
+                $errMsg = $e->getMessage();
+            }
+
+            require_once 'Zend/Serializer/Exception.php';
+            throw new Zend_Serializer_Exception($errMsg);
+        }
+
+        return $ret;
+    }
+}