Problem of user online/ offline status

12-19-2007

I want to know how to check that user is online or offline status if
he close his browser with the help of <body onunload>.As it not work
well if is user change his page as that time it is too fired.I want
only to fire function if user closed browser.

12-19-2007

"Php Developer" <> wrote in message
news:6f4a82fd-ee35-4323-957c-...
>I want to know how to check that user is online or offline status if
> he close his browser with the help of <body onunload>.As it not work
> well if is user change his page as that time it is too fired.I want
> only to fire function if user closed browser.

Er, what? Google grouper, figures.

In any case you can not reliably know when a viewer "stops" looking at your
page. onunload does not work - what if they simply pull the plug on their
computer or wander off down to the pub?

This is asked frequently. Google.

--
Richard.

12-19-2007

Hi,
What i need some help to make it work if possible any ways pls tell
Thanks
> >I want to know how to check that user is online or offline status if
> > he close his browser with the help of <body onunload>.As it not work
> > well if is user change his page as that time it is too fired.I want
> > only to fire function if user closed browser.

12-19-2007

In article <8040f325-3e23-47cd-b89e->, Php Developer <> wrote:
>Hi,
>What i need some help to make it work if possible any ways pls tell

What part of 'you can not reliably know when a viewer stops looking at your
page' did you not understand?

> Thanks
>> >I want to know how to check that user is online or offline status if
>> > he close his browser with the help of <body onunload>.As it not work
>> > well if is user change his page as that time it is too fired.I want
>> > only to fire function if user closed browser.

12-19-2007

On Dec 19, 12:41 pm, Php Developer <php.developer2...@gmail.com>
wrote:
> I want to know how to check that user is online or offline status if
> he close his browser with the help of <body onunload>.As it not work
> well if is user change his page as that time it is too fired.I want
> only to fire function if user closed browser.

It is impossible to /reliably/ get this information in the way you
want it. But what you're asking for also seems illogical. The fact
that the user has browser away from your page is the *only* indicator
you have. And that isn't reliable - what if the process is killed, or
the connection is dropped by the ISP, or the user has more then one
browser instance at a time open? These conditions all subvert the
notion of being "online" or "offline" as far as your question goes.

12-19-2007

Hi,
I know maybe i m not asking unreliable thing but i want a way to make
it work if you know better way thn that then tell.As orkut and
facebook are using this things..
Thanks
On Dec 19, 6:53 pm, seani <ingl...@gmail.com> wrote:
> On Dec 19, 12:41 pm, Php Developer <php.developer2...@gmail.com>
> wrote:
>
> > I want to know how to check that user is online or offline status if
> > he close his browser with the help of <body onunload>.As it not work
> > well if is user change his page as that time it is too fired.I want
> > only to fire function if user closed browser.
>
> It is impossible to /reliably/ get this information in the way you
> want it. But what you're asking for also seems illogical. The fact
> that the user has browser away from your page is the *only* indicator
> you have. And that isn't reliable - what if the process is killed, or
> the connection is dropped by the ISP, or the user has more then one
> browser instance at a time open? These conditions all subvert the
> notion of being "online" or "offline" as far as your question goes.

12-19-2007

Hi,
I know maybe i m not asking unreliable thing but i want a way to make
it work if you know better way thn that then tell.As orkut and
facebook are using this things..
Thanks

On Dec 19, 6:50 pm, spamb...@milmac.com (Doug Miller) wrote:
> In article <8040f325-3e23-47cd-b89e-e029c53a4...@s12g2000prg.googlegroups.com>, Php Developer <php.developer2...@gmail.com> wrote:
>
> >Hi,
> >What i need some help to make it work if possible any ways pls tell
>
> What part of 'you can not reliably know when a viewer stops looking at your
> page' did you not understand?
>
>
>
> > Thanks
> >> >I want to know how to check that user is online or offline status if
> >> > he close his browser with the help of <body onunload>.As it not work
> >> > well if is user change his page as that time it is too fired.I want
> >> > only to fire function if user closed browser.- Hide quoted text -
>
> - Show quoted text -

12-19-2007

On Dec 19, 2:02 pm, Php Developer <php.developer2...@gmail.com> wrote:
> I know maybe i m not asking unreliable thing but i want a way to make
> it work

It isn't possible, as you've been told several times.

> if you know better way thn that then tell.As orkut and
> facebook are using this things..

Then they lie. The closest you can come is "The user access a page X
seconds ago, they might still be online" (and that involves something
on the server, which could be JavaScript, but probably isn't).

12-19-2007

On Dec 19, 8:02 am, Php Developer <php.developer2...@gmail.com> wrote:
> Hi,
> I know maybe i m not asking unreliable thing but i want a way to make
> it work if you know better way thn that then tell.As orkut and
> facebook are using this things..
> Thanks
>
> On Dec 19, 6:50 pm, spamb...@milmac.com (Doug Miller) wrote:
>
>
>
> > In article <8040f325-3e23-47cd-b89e-e029c53a4...@s12g2000prg.googlegroups.com>, Php Developer <php.developer2...@gmail.com> wrote:
>
> > >Hi,
> > >What i need some help to make it work if possible any ways pls tell
>
> > What part of 'you can not reliably know when a viewer stops looking at your
> > page' did you not understand?
>
> > > Thanks
> > >> >I want to know how to check that user is online or offline status if
> > >> > he close his browser with the help of <body onunload>.As it not work
> > >> > well if is user change his page as that time it is too fired.I want
> > >> > only to fire function if user closed browser.- Hide quoted text -
>
> > - Show quoted text -- Hide quoted text -
>
> - Show quoted text -

facebook is probably just checking that the person is logged in. If
logged in, then they say they're "online". They do this with cookies.
And they probably don't use javascript for this, but some server side
stuff (php, for example) like David mentioned.

12-19-2007

David Dorward wrote:
> On Dec 19, 2:02 pm, Php Developer <php.developer2...@gmail.com> wrote:
>> I know maybe i m not asking unreliable thing but i want a way to make
>> it work
>
> It isn't possible, as you've been told several times.

Is it possible? -- Yes. Is it reliable? -- No.

>> if you know better way thn that then tell.As orkut and
>> facebook are using this things..
>
> Then they lie. The closest you can come is "The user access a page X
> seconds ago, they might still be online" (and that involves something
> on the server, which could be JavaScript, but probably isn't).

If the application depended on XHR, XHR could also be used to determine
whether or not a request could be made to the same document resource. If
it threw an exception on an otherwise proper XHR:

pen() call, then one
could assume that the client was offline, and if it did not, that it was online.

PointedEars
--
"Use any version of Microsoft Frontpage to create your site. (This won't
prevent people from viewing your source, but no one will want to steal it.)"
-- from <http://www.vortex-webdesign.com/help/hidesource.htm>

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
can I use more than one status condition name in imaplib.status()	harryos	Python	0	10-13-2010 01:37 PM
status info like rc.status	Sven S.	Ruby	2	12-11-2008 08:26 AM
Recommend a free 'Status Monitor' or 'Dashboard' to report overnight tasks status?	Shug	Java	13	12-15-2006 06:22 PM
Recommend a free 'Status Monitor' or 'Dashboard' to report overnight tasks status?	Shug	C++	13	12-15-2006 06:22 PM
POST problem - IIS sc-win32-status:64; sc-status:400	saha	ASP .Net	0	07-14-2005 07:10 AM