问如何在Zend framework 1中获取布局中的会话值？

EN

<h2><?php  $myprofile=new Zend_Session('user_session');
  print $myprofile->username; ?> </h2>

  $userid = $this->_user->getUserId($username,$password);
  $session = new Zend_Session_Namespace('user_session');
  $session->username = $username;
  $session->password = $password;
  $session->uid = $userid;
  $this->_redirect('home');

$this->session = new Zend_Session_Namespace('user_session');
$this->view->uname = $this->session->username;

<?php echo "The User Name is ".$this->uname?>

Fatal error: Call to protected Zend_Session::__construct() from context 'Zend_View' in/var/www/shoppingcart/application/layouts/scripts/layout.phtml on line 19