Thank you!
I think this is what I needed.
Regards, Venelin
Robin Vickery wrote:
On Mon, 22 Nov 2004 11:52:03 -0500, Gryffyn, Trevor
<tgryffyn@xxxxxxxxxxxxxxxxx> wrote:
Then somewhere there has to be a cross reference between name and
timezone info. I'm sorry I'm not running Apache here and don't have
access to the same info that you're using, but I'd try digging into
those config files and any database tables you can find that seem to
relate to it. I'm sorry I can't be more help, but it's gotta be in
there somewhere.
Apache and PHP should be able to use your zoneinfo file, which contains the mappings for all these timezones.
You can obtain the offset of the current timezone, using strftime('%z'). You'll get a return value like '+0000' (for GMT) or '+0200' (for EET) and '-0200' (for EST) etc.
http://www.php.net/strftime
You can change the current timezone by setting the 'TZ' environment variable with something like putenv("TZ=EST").
http://www.php.net/putenv
You can find out the current setting of the 'TZ' environment variable with getenv('TZ').
http://www.php.net/getenv
Putting that lot together, it's not hard to write a small function that given a timezone will return an offset from UTC (aka GMT).
<?php
function tzOffset($tzUser) { $tzServer = getenv('TZ'); putenv("TZ=$tzUser"); $offset = strftime('%z'); putenv("TZ=$tzServer"); return $offset; }
echo tzOffset('Canada/Newfoundland'); // -0330 echo tzOffset('EET'); // +0200
?>
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