NYCPHP Meetup

[Sexton, David]

The only thing I can think of using a standard web browser is to setting the
timeout to 0 (set_time_limit (0);) and using some combination of flush/sleep
functions to continuously poll and update the display frame... I have no
idea how it would behave or if it would slam your server with all the
concurrent connections, but an applet sounds like a better solution for
something like this.

-----Original Message-----
From: crisscott at netzero.com [mailto:crisscott at netzero.com]
Sent: Thursday, August 07, 2003 11:48 AM
To: shiflett at php.net; talk at lists.nyphp.org
Subject: Re: [nycphp-talk] Forcing page refresh



I am trying to figure out if there is a good way to make an instant
messaging/chat program in php.  I don't want to create all of that traffic
with unnecessary refreshes.  There is no point in updating the page if
nobody has anything to say.  At the same time, I don't want users to have to
wait 30 seconds between messages.  If I could get the users browser to
refresh on my command that would pervent all of the unnecessary traffic.  I
figure that any reasonably secure browser would ignore any headers it wasn't
expecting, but is there a way to make the browser sit and wait for my
command?  Or am I trying to do something browser developers spend all day
trying to prevent?
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