Reproduction code for ZF-12494 (http://framework.zend.com/issues/browse/ZF-12494): A class implementing __wakeup() and a controller using it.

IndexController.php

<?php

class IndexController extends Zend_Controller_Action
{
    public function indexAction()
    {
        switch ($this->_getParam('what', 'test')) {
            case 'store':    $this->_store();    break;
            case 'retrieve': $this->_retrieve(); break;
            case 'clear':    $this->_clear();    break;
            case 'test':
            default:         $this->_test();     break;
        }
        
        echo '<hr />';
        echo '<a href="' .$this->_helper->url->url(array('controller' => 'index', 'action' => 'index', 'what' => 'test')) . '">Test object (no session)</a> | ';
        echo '<a href="' .$this->_helper->url->url(array('controller' => 'index', 'action' => 'index', 'what' => 'store')) . '">Store (Note: clear before storing again)</a> | ';
        echo '<a href="' .$this->_helper->url->url(array('controller' => 'index', 'action' => 'index', 'what' => 'retrieve')) . '">Retrieve</a> | ';
        echo '<a href="' .$this->_helper->url->url(array('controller' => 'index', 'action' => 'index', 'what' => 'clear')) . '">Clear</a>';
    }
    
    protected function _getSubject()
    {
        $s = new Application_Model_SleepingModel();
        $s->aMember = 'foo';
        $s->anotherMember = 'bar';
        return $s;
    }
    
    protected function _test()
    {
        $subject = $this->_getSubject();
        echo 'My test subject:';
        var_dump($subject);
        
        echo 'Serialize:';
        $subject_ser = serialize($subject);
        var_dump($subject_ser);
        
        echo 'Wake-up :';
        $o2 = unserialize($subject_ser);
        var_dump($o2);
    }
    
    protected function _store()
    {
        echo '(please clear before storing again)<br />';
        $subject = $this->_getSubject();
        $subject->anotherMember = 'baz';
        echo 'My test subject:';
        var_dump($subject);
        
        echo 'Storing in session...';
        $session = new Zend_Session_Namespace('testingSleepingModel');
        $session->mySleeper = $subject;
        echo '... done';
    }
    
    protected function _retrieve()
    {
        echo 'Fetching from session...';
        $session = new Zend_Session_Namespace('testingSleepingModel');
        var_dump($session->mySleeper);
        echo '... done';
    }
    
    protected function _clear()
    {
        @Zend_Session::destroy(true, false);
    }
}

SleepingModel.php

<?php

class Application_Model_SleepingModel
{
    public $aMember;
    public $anotherMember;
    
    public function __wakeup()
    {
        $arr = array();
        $foo = @$arr['bar']; // Try to use some index that doesn't exists (but silence the error with @)
    }
}