PHP - Session destroy after closing browser

Use a keep alive.

On login:

session_start();
$_SESSION['last_action'] = time();

An ajax call every few (eg 20) seconds:

windows.setInterval(keepAliveCall, 20000);

Server side keepalive.php:

session_start();
$_SESSION['last_action'] = time();

On every other action:

session_start();
if ($_SESSION['last_action'] < time() - 30 /* be a little tolerant here */) {
  // destroy the session and quit
}

The best way is to close the session is: if there is no response for that session after particular interval of time. then close. Please see this post and I hope it will resolve the issue. "How to change the session timeout in PHP?"

This might help you,

session_set_cookie_params(0);
session_start();

Your session cookie will be destroyed... so your session will be good until the browser is open. please view http://www.php.net//manual/en/function.session-set-cookie-params.php this may help you.