ID: 45543 User updated by: tj at systisoft dot com -Summary: DateTime::setTimezone kann not set timezones without ID Reported By: tj at systisoft dot com Status: Open -Bug Type: Date/time related +Bug Type: Feature/Change Request -Operating System: Mac OS X +Operating System: All PHP Version: 5.3CVS-2008-07-17 (CVS) New Comment:
Description: ------------ If you set a time zone for a DateTime via DateTime::setTimeZone() and that time zone has no ID you get an error message and the time zone will not be set. This can lead to problems if you have two DateTime objects from a source you do not control and want to format the second DateTime object in the same time zone as the first. Reproduce code: --------------- $d1 = new DateTime('2008-01-01 12:00:00 +02:00'); $d2 = new DateTime('2008-01-01 12:00:00 UTC'); echo $d1->format(DATE_ISO8601), PHP_EOL; echo $d2->format(DATE_ISO8601), PHP_EOL; $d2->setTimeZone($d1->getTimeZone()); echo $d1->format(DATE_ISO8601), PHP_EOL; echo $d2->format(DATE_ISO8601), PHP_EOL; Expected result: ---------------- 2008-01-01T12:00:00+0200 2008-01-01T12:00:00+0000 2008-01-01T12:00:00+0200 2008-01-01T14:00:00+0200 Actual result: -------------- 2008-01-01T12:00:00+0200 2008-01-01T12:00:00+0000 PHP Warning: DateTime::setTimezone(): Can only do this for zones with ID for now in /Users/tobias/test.php on line 5 Warning: DateTime::setTimezone(): Can only do this for zones with ID for now in /Users/tobias/test.php on line 5 2008-01-01T12:00:00+0200 2008-01-01T12:00:00+0000 Previous Comments: ------------------------------------------------------------------------ [2008-07-17 13:07:47] tj at systisoft dot com Description: ------------ if you set a time zone for a DateTime via DateTime::setTimeZone() and that time zone has no ID you get an error message and the time zone will not be set. This can lead to Problems if you have two DateTime objects from a surce you do not control and want to format the secont DateTime object in the same time zone as the first. Reproduce code: --------------- $d1 = new DateTime('2008-01-01 12:00:00 +02:00'); $d2 = new DateTime('2008-01-01 12:00:00 UTC'); echo $d1->format(DATE_ISO8601), PHP_EOL; echo $d2->format(DATE_ISO8601), PHP_EOL; $d2->setTimeZone($d1->getTimeZone()); echo $d1->format(DATE_ISO8601), PHP_EOL; echo $d2->format(DATE_ISO8601), PHP_EOL; Expected result: ---------------- 2008-01-01T12:00:00+0200 2008-01-01T12:00:00+0000 2008-01-01T12:00:00+0200 2008-01-01T14:00:00+0200 Actual result: -------------- 2008-01-01T12:00:00+0200 2008-01-01T12:00:00+0000 PHP Warning: DateTime::setTimezone(): Can only do this for zones with ID for now in /Users/tobias/test.php on line 5 Warning: DateTime::setTimezone(): Can only do this for zones with ID for now in /Users/tobias/test.php on line 5 2008-01-01T12:00:00+0200 2008-01-01T12:00:00+0000 ------------------------------------------------------------------------ -- Edit this bug report at http://bugs.php.net/?id=45543&edit=1