how do i know how many users are online

Question

Possible Duplicate:
Best way to detect when user leaves a web page
Check if user closed the page in PHP?

i did not find my answer by viewing other question.

As i wanted to make online chat application for my web site

Many answers says that store users status to 1 so that we can identify who is login

on Logut i will make status to 0

yes this is good idea but my confusion is that if someone not logut and close the browser or user's session expire in anyway how do i set status to 0

@richsage if you know this has been many times so provide me link here — Bhavik Patel, May 07 '12 at 08:46
see [here](http://stackoverflow.com/questions/1992753/check-if-user-closed-the-page-in-php), [here](http://stackoverflow.com/questions/147636/best-way-to-detect-when-user-leaves-a-web-page) and [here](http://stackoverflow.com/questions/887919/how-to-detect-if-the-user-is-logout-in-php) — richsage, May 07 '12 at 08:50

score 0 · Accepted Answer · answered May 07 '12 at 08:49

0

answered May 07 '12 at 08:49

w0051977

ok but this also calls when user changes page – Bhavik Patel May 07 '12 at 08:52

score 0 · Answer 2 · answered May 07 '12 at 09:43

0

Make the server ping the client regularly.

answered May 07 '12 at 09:43

Joel

2 Answers2