delete session cookie

[Destramic]

hey guys im using a session cookie to store a user_id, only if user has clicked to remember me on the login form...that way when autenticating it checks id in db and if matching a user it logs in automatically.

 

now the problem i want to just remove user_id from a session cookie.  if i use the code below to delete the user_id session then it will remove all session cookies.

 

 is there a way just to remove 1 session cookie?  thank you

// create session cookie
session_start();
session_set_cookie_params('3600', 'C:\Users\Ricky\Desktop\www\BiSi\private\tmp\session', 'http://127.0.0.1/', true, true);
ini_set('session.gc_probability', 1);
session['user_id'] = 1;

//delete session cookies
setcookie (session_name(), null, time() - 3600);
session_regenerate_id(true);

any help/advise would be greatful...cheers guys

 

[Ch0cu3r]

The data is not stored in the session cookie. The cookie only contains the session id.  PHP uses this to fetch the data from the session. All data stored in a session is stored on the server in the file system

 

To remove the user_id from the session you need to unset it from $_SESSION

unset($_SESSION['user_id']); // removes user_id from session

If you delete the actual session cookie, then all data in the session will be destroyed.

[jwwceo]

your session variables are not stored in the browsers cookies. Just a session ID, which your server uses to grab the related session variables. 

[Tom8001]

// create session cookie
session_start();
session['user_id'] = 1;  

Here you are not setting the user id

try 

<?php
error_reporting(E_ALL | E_NOTICE);
ini_set('display_errors', '1');
session_start();

$_SESSION['user_id'] = 1;
?>