Codeigniter是否具有默认的会话值？

Question

Even if I use session_destroy() in my logout controller var_dump($_SESSION); gives some output like array(1) { ["__ci_last_regenerate"]=> int(1484032559) } after user has logged out. For this reason I think the following code for login controller is not working properly:

function login()
{
  if(!isset($_SESSION['user']))
  {
    $this->load->view("log");
  }

  else
  {
    /********login details verification*******/
  }

If so is the case how to destroy session after user logout? Can anyone help please? Thanks.

Answer 1

Use CodeIgnitor native session destroy method, it should work fine as CodeIgnitor use it's own session mechanism.

e.g,
$this->session->sess_destroy();

to unset any session value use following syntax

$this->session->unset_userdata('variable');

Reference http://www.codeigniter.com/user_guide/libraries/sessions.html?highlight=session%20destroy#destroying-a-session