[PHP] How long does a session last? Need to have it at 20mins

[Phil Powell]

I had thought that a session would last only 20 mins if
session.gc_maxlifetime is set at 1440.  Was I wrong in assuming this?  I
have pages that have session_start() at the top to persist the session
throughout the life-cycle of these pages, however, I want the session to
expire after 20 mins or so of use.  How can I assure that the session will
expire after 20 mins?

Thanx
Phil



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RE: [PHP] How long does a session last? Need to have it at 20mins

[Johnson, Kirk]

Garbage collection is launched according to the gc_probablility. If it finds
a session file that has not been modified for a longer time than
gc_maxlifetime, it deletes it. So, whenever a user requests a page, they
essentially reset the session timer to zero for that particular session,
since the session file gets modified on each page request for that session.
If you want to set a hard timeout of 20 minutes, you may need to write your
own garbage collection process.

Kirk

 -Original Message-
 From: Phil Powell [mailto:[EMAIL PROTECTED]]
 Sent: Friday, April 19, 2002 1:02 AM
 To: [EMAIL PROTECTED]
 Subject: [PHP] How long does a session last? Need to have it at 20mins
 
 
 I had thought that a session would last only 20 mins if
 session.gc_maxlifetime is set at 1440.  Was I wrong in 
 assuming this?  I
 have pages that have session_start() at the top to persist the session
 throughout the life-cycle of these pages, however, I want the 
 session to
 expire after 20 mins or so of use.  How can I assure that the 
 session will
 expire after 20 mins?
 
 Thanx
 Phil
 

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