Code Sample Preventing Session Fixation PHP

Problem:- Code Sample Preventing Session Fixation PHP

Solution:-

<?php 	

ini_set('session.use_only_cookies', true);
session_start();

if (!isset($_SESSION['gen']) || $_SESSION['gen']< (time()-30)) {
	# code...
	session_regenerate_id();
	$_SESSION['gen'] = time();

}


 ?>