phpeveryday.com

First, create view for logout. Create a file named "logout.phtml" within application/views/scripts/user. Leave blank (because we don't want to show anything).

Then, we create a method for controller named logoutAction(). Open "UserController.php" within application/controllers. Add following method:

  public function logoutAction()
  {
    $auth = Zend_Auth::getInstance();
	$auth->clearIdentity();
	$this->_redirect('/user');
  }

We just use clearIdentity(). Then redirect page to another page (in this sample to user).