How to have two user level in one db php - php

Question

I have 2 user level, one is for the admin_tbl and the other is for cashier_tbl they have the same database. My problem is whether I log out either cashier or admin the other one is also log out when I refresh the page. I dont know what the problem is, I used different table so but it log out both of them at the same time? kindly help me with this problem, give me some ideas of whats wrong. Thanks!
UPDATE: Thats my logout code for both cashier_tbl and admin_tbl
This is my code for cashier_tbl
<?php
session_start();
$_SESSION = array();
if (ini_get("session.use_cookies")){
$params = session_get_cookie_params();
setcookie(session_name(), '', time() - 42000,
$params["path"], $params["domain"],
$params["secure"], $params["httponly"]
);
}
session_destroy();
header("Location: index.php");
?>
And this is for my admin_tbl
<?php
session_start();
$_SESSION = array();
if (ini_get("session.use_cookies")){
$params = session_get_cookie_params();
setcookie(session_name(), '', time() - 42000,
$params["path"], $params["domain"],
$params["secure"], $params["httponly"]
);
}
session_destroy();
header("Location: index.php");
?>

Answer 1

Your problem on this line :
if (isset($_SESSION['user_id']))
{
header("Location: user_maintenance.php");
}
it's redirect you to user_maintenance.php even if $_SESSION is empty. And on :
if (isset($_SESSION['user_id']))
{
header("Location: order.php");
}
is same to.
These is the others correct way.
I assumed you never set session_unset() or session_destroy() in your logout method.
Delete session_unset() and session_start(); in the first line of your code above, it's not neccessary.
After check the user login method like your code above, in your file order.php and user_maintenance.php, start the session. it would something like this :
<?php
session_start();
// check if the user was login or not
if($_SESSION['login'] == false){
header('Location: user-is-not-login.php');
}
?>
// this area can be access if session is true.
create logout method in location that session was set. something like this :
<?php
session_start();
session_destroy();
session_unset();
header('Location: login.php');
?>
You need to destroy the session before set a new session.
hope these help.