how to set session time out in php?

Question

session_cache_expire( 20 );
session_start(); // NEVER FORGET TO START THE SESSION!!!
$inactive = 1200;
if(isset($_SESSION['start']) ) {
    $session_life = time() - $_SESSION['start'];
    if($session_life > $inactive){
        header("Location: user_logout.php");
    }
}
$_SESSION['start'] = time();
if($_SESSION['valid_user'] != true){
header('Location: ../index.php');
}else{

I'm making an online examination system. I'm using PHP and MySQL.

I want to set the session time, but don't know how. Please help me.

Thanks in advance

Please check http://stackoverflow.com/questions/520237/how-do-i-expire-a-php-session-after-30-minutes — Sethunath K M, Apr 21 '12 at 05:59

score 0 · Answer 1 · answered Apr 21 '12 at 06:11

0

i am going to set session time

Don't touch it ever.
Default session timeout is good enough for anyone.

You are confusing the session timeout with whatever application timeout.

Instead of playing with session timeout you have to store whatever timings in the session itself.
But not to throw a user to login page silently to to warn them gracefully

answered Apr 21 '12 at 06:11

Your Common Sense

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This coming from your common sense. You should listen! – Madara's Ghost Apr 21 '12 at 06:16

how to set session time out in php?

1 Answers1