ID:               35660
 User updated by:  Bjorn dot Wiberg at its dot uu dot se
 Reported By:      Bjorn dot Wiberg at its dot uu dot se
 Status:           Open
-Bug Type:         Feature/Change Request
+Bug Type:         Date/time related
-Operating System: AIX 5.2.0.0 ML5
+Operating System: IBM AIX 5.2.0.0 ML5
 PHP Version:      5.1.1
 New Comment:

Another quick note to clarify that the timestamp measured in UTC of
course is correct -- the wording "correct" in the output of my script
might be a bit misleading; the problem is that PHP doesn't recognize
the AIX timezone contained in the TZ variable, nothing else.


Previous Comments:
------------------------------------------------------------------------

[2005-12-13 19:37:39] Bjorn dot Wiberg at its dot uu dot se

Just a quick note to tell that PHP does log this fact in the Apache
error log:

PHP Notice:  date(): Timezone setting (date.timezone) or TZ environment
variable contains an unknown timezone in /apache/htdocs/...

------------------------------------------------------------------------

[2005-12-13 19:28:32] Bjorn dot Wiberg at its dot uu dot se

Description:
------------
PHP does not understand the notion of the TZ environment variable that
IBM AIX uses, and defaults to the UTC time zone if an "incorrect" TZ
value is encountered.

The format of the TZ variable, and the allowed values, can be found
here:
http://publib.boulder.ibm.com/infocenter/pseries/index.jsp?topic=/com.ibm.aix.doc/files/aixfiles/environment.htm

If this could be considered for future releases, that would be a great
relief. As many (all?) other software on the system seem to use the TZ
correctly.


Otherwise, it would be great if the date.timezone setting would act as
a fallback in case the TZ environment variable is considered invalid by
PHP.

And, perhaps, that this is clarified in the documentation
(http://se.php.net/manual/sv/function.date-default-timezone-get.php);
i.e., that an incorrect TZ value directly yields a "UTC" timezone
setting.

Reproduce code:
---------------
System environment configuration file /etc/environment contains:
TZ=NFT-1DFT,M3.5.0/02:00:00,M10.5.0/03:00:00

httpd.conf contains:
php_value date.timezone "Europe/Stockholm"

PHP script that displays the reverting-to-UTC behavior of PHP:

<?php
//  putenv('TZ=NFT-1DFT,M3.5.0/02:00:00,M10.5.0/03:00:00');

  echo 'TZ is: ' . getenv('TZ') . '<BR>';
  echo 'date.timezone is: ' . ini_get('date.timezone') . '<BR>';
  echo 'date_default_timezone_get() returns: ' .
date_default_timezone_get() . '<BR>';
  echo 'Current time is: ' . strftime('%T') . '<BR>';

  echo '<BR>';

  echo 'Forcing the correct timezone (' . ini_get('date.timezone') .
')...<BR>';
  date_default_timezone_set(ini_get('date.timezone'));
  echo 'Correct current time is: ' . strftime('%T') . '<BR>';
?>


Expected result:
----------------
That the timezone is picked up and understood by PHP. This would equal
the "Europe/Stockholm" timezone setting. That is:

TZ is: NFT-1DFT,M3.5.0/02:00:00,M10.5.0/03:00:00
date.timezone is: Europe/Stockholm
date_default_timezone_get() returns: Europe/Stockholm
Current time is: 19:20:10

Forcing the correct timezone (Europe/Stockholm)...
Correct current time is: 19:20:10

Actual result:
--------------
TZ is: NFT-1DFT,M3.5.0/02:00:00,M10.5.0/03:00:00
date.timezone is: Europe/Stockholm
date_default_timezone_get() returns: UTC
Current time is: 18:20:10

Forcing the correct timezone (Europe/Stockholm)...
Correct current time is: 19:20:10


------------------------------------------------------------------------


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