Undefined variable: _SESSION [APP\Controller\UsersController.php in cakephp 2.0 - 


undefined variable: _session [app\controller\userscontroller.php in cakephp 2.0

have included session component in 

userscontroller var $components = array('session', 'cookie');

code that:

if(!empty($id)) {                   print "<br><pre>";           print_r($_session['text']);    print "<br><pre>";    print_r($this->session->read("captchatext"));    die;      }   else {    $_session['text'] = "jjsssssjj";    $this->session->write("captchatext", "ddddddssssssssssdddd");    print "ddddddssssssssssdddd"; }

try

public $components = array('session');

and why not use cakephp syntax reading session like:

   print "<br><pre>";           print_r($this->session->read('text'));    print "<br><pre>";

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