stop duplicate entry

[brown2005]

hi i want to know how to stop duplicate entries when using php sessions.

i mean say i open up one Internet Explorer and log in, if i open another Internet Explorer window, i want to be able to stop from login in on the second one, cause it is already logged in

thanks

[corbin]

uhhhh the login script... what does it set?  As long as you keep 1 window of IE open it retains a session if i remember correctly... So In theory it should stay logged in...

[brown2005]

i have;

$_SESSION['MemberID'] = $login_array['members_id'];
session_register('MemberID');

i can open two internet explorer windows and log in on both of them with the same username and password

[redarrow]

[code]
<?php
if($_SESSION['member_id']){
header("location: index.php");
}
?>
[/code]

[brown2005]

wats that mean?

[Guest huey4657]

Somewhere in the login script (usally when username and password have been validated) you need to set authentication
[code]$_SESSION['auth'] = "yes";[/code]

then the top of your pages goes something like this

[code] session_start();

/* Check to see if user is logged in,
    if not send to login page. */

if(@$_SESSION['auth'] != "yes")

  {

  header("Location: Login.php");

  exit();

  }[/code]