如何限制特定用户访问特定网页

Question

I want to restrict users to access particular webpages in my applicatipn. In my application I have 4 webpages like Mumbai , Delhi , Bangalore , Kolkata and I have havie 4 users say User1 , User2 , User3 and User4 . All users are Admin.

My requirement is that all 4 user can't access Mumbai page, User1 can access only Delhi page, User2 and User3 can access only Bangalore page and User4 can access only Kolkata page.

For Mumbai page I used

if($login_session['login_user'] != 'User1, User2, User3, User4')
{ 

   echo "You dont have permission to access this page";
   echo '<meta http-equiv="refresh" content="1; url=Admin-Dashboard.php">';
   exit();       

}
?>

And for Delhi page I used Following code but it is not working

if($login_session['login_user'] != ' User2, User3, User4')
    { 

       echo "You dont have permission to access this page";
       echo '<meta http-equiv="refresh" content="1; url=Admin-Dashboard.php">';
       exit();       

    }
    ?>

Answer 1

The problem is that 'User1, User2, User3, User4' is a string. You need to explode() that or somehow make sure that the users are in an array:

$allowed_users = array('User1','User2','User3');
if (!in_array($login_session['login_user'], $allowed_users)) {
   echo "You dont have permission to access this page";
   echo '<meta http-equiv="refresh" content="1; url=Admin-Dashboard.php">';
   exit();       
}