Question

how to handle session events !!?

Asked by: palserv

Hi there ,
I have a multi users web application , every user have a user name and password to login the system
now I want to to fine out who is the users logged to the system and who is not !!

can you help me with some ideas !?

thanks in advance

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Asked On
2008-03-31 at 23:54:22ID23284937
Tags

php

,

4.4.7

Topics

MySQL Server

,

PHP Scripting Language

Participating Experts
2
Points
500
Comments
5

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Answers

 

by: logudotcomPosted on 2008-04-01 at 00:03:00ID: 21251761

 

by: cedlinxPosted on 2008-04-01 at 01:59:13ID: 21252262

You can create a table called logusers or anything else and make the login time to be inserted into it whenever a successful login operation is performed. And when a logout is done, the corresponding record should have its logout time (which default could be null or whatever) updated to show that that user has logged out. Logout could be when a user clicks logout or when a session expires.

Logusers table could have the following fields:
id, userid, logintime, logouttime

 

by: palservPosted on 2008-04-01 at 04:17:00ID: 21252760

"or when a session expires."

yes this is exactly what I want !! but how to run the logout function on session expires ?

 

by: cedlinxPosted on 2008-04-01 at 06:31:49ID: 21253675

You can use timers... look at the accepted solution in the following link. I posted that sometime last month:

http://www.experts-exchange.com/Web_Development/Web_Languages-Standards/PHP/Q_23241078.html

Or go straight to the following links:
Check these out: http://www.hscripts.com/tutorials/html/autorefresh.php
http://www.codewalkers.com/c/a/Display-Tutorials/Smart-Auto-Refresh/


ALTERNATIVELY, you can make your program get the login time and using that login time, calculate the time the session should expire and automatically enter that into a table at the time of login. Now whether or not the user logs out at that time, he could be made to relogin using a session variable as a countdown timer.

Here's the login:
1. We have a table logusers with fields id; userid; logintime; logouttime; whateverelse
2. User logs in at 8:00 pm (and session should last only 30 mins) Therefore we insert into logusers(..., logintime, logouttime...) values(..., 8:00pm, 8:30pm, ...)
3. Set our countdown session variable to 8:30pm
4 Whenever a new link is visited or a refresh is made, check to see if currenttime = countdown session (and act accordingly as desired)

But take a look at the links above and see... you may prefer to use something from there.

Hope this helps...

 

by: cedlinxPosted on 2008-04-01 at 06:37:50ID: 21253740

You may also combine both. If you use the timers, you may have to combine them with normal session variables that would become 'dead' at expiration.

Hope this helps...

20120131-EE-VQP-002

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