Re: What's the scope of putenv()?

On 2005-08-08 11:51:32 -0700, [email protected] (Karen Andrien) said:
> However, I haven't been able to find any information on the scope of
> the putenv() statement.  What happens if users from Vancouver and
> Toronto log on at the same time?

Assuming you are running a multi-process web server like Apache1 or Apache2
with the prefork mpm, then there is no problem.  The TZ env var will be 
per-request.
PHP takes care of resetting it at the end of each request.

The PHP documentation says putenv() applies "for the current request"
> only, but several users on the documentation page disagree.  They claim
> that putenv() has changed the time zone for both the current request
> and other future requests at random.
> 
They are either wrong, or they are using a multithreaded server like IIS.

There is actually a new ext/date extension on the way which provides 
this capability
separate from the OS-level locale stuff you are looking at to attempt 
to fix variances
at the OS level messing up portability.

-Rasmus