在运行php上增加时间会话超时

Question

How can i increment the time of the session time out once the session has started? I set in the php.ini file:

session.gc_maxlifetime = 3600

but i need to keep alive the session while the user has the page open.

Answer 1

You could do it like this

ini_set("session.gc_maxlifetime", 3600);

Look here for more info: http://us2.php.net/ini_set

Answer 2

If you really want a different timeout for each user, then I would do: ini_set(session.gc_maxlifetime, 43200); // 12 hours ini_set(session.gc_maxlifetime, 43200); // 12 hours As your max range then say:

$customEndTime = (rand(0, 4320) * 10) + time(); // max rand is usually 32767
$_SESSION['endTime'] = $customEndTime;

When you go to check your session variables, just add that check in there and if the customEndTime > time() , then reset the users session using session_destroy();

You can of course increase 43200 to whatever you need. To calculate it, say: 60*60*$maxNumberOfHours