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Posted by Joseph S. on 09/30/05 21:18
Let me rephrase my question,
If i have a page dosomething.php which three users situated at
geographically diverse locations are simultaneously viewing, and if I
use
$_SESSION['x']=$_GET['x'];
or some such code,
then,
are there, in the server machine's RAM, totally three different
$_SESSION['x'] variables with their respective values or is there just
one?
I looked up and found (send win enabler white paper) that the CGI
installation of PHP under Apache,Windows works like that - there is "a
separate process initiated" for each request of the dosomething.php
page and apparently (not clearly stated) not the apache module version
of PHP.
It also says that php on apache 1.3 on Unix (or linux) uses a
multiprocess webserver - meaning one process for each request.
I have a WinXP machine for development and will be deploying to a host
that has PHP and MySQL on Apache on Linux.
Will that setup be <one request one $_SESSION['x'] variable> ?
***************
Also, does the code have to be written in a different way for LAMP than
for WAMP(apachemodule, not CGI) or does it automatically understand so
and behave thread safe?
In other words, do I have to do anything else to my $_SESSION['x'] =
$_GET['x'] for the code to work on LAMP after seeing it run properly on
my single user WAMP development setup?
***************
Thanks in advance.
Joseph S.
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