From: post at jefago dot de Operating system: Debian GNU/Linux PHP version: 5.2.4 PHP Bug Type: Date/time related Bug description: Invalid timezone reported for DateTime objects constructed using a timestamp
Description: ------------ A DateTime object that is created using a timestamp (with the "@$iTimestamp" notation) but without a explicitly given time zone (in the constructor) invalidly reports its time zone as the default time zone, although its time zone really is UTC. Converting it to the default time zone corrects this behaviour. I know that this bug is somewhat similiar to http://bugs.php.net/bug.php?id=41912, that was marked as "bogus", but I think the demonstration code makes it clearer that in this case it is really buggy behaviour. In fact, the UNIX timestamp is quite clearly defined as "the number of seconds since 1970-01-01 00:00:00 UTC" and thus it should be time zone independant. Reproduce code: --------------- $oDateTest = new DateTime("@0", new DateTimeZone(date_default_timezone_get())); echo "timestamp 0, constructed with default time zone (".$oDateTest->getTimezone()->getName()."): " . $oDateTest->format("Y-m-d H:i:s")."<br />"; $oDateTest->setTimezone(new DateTimeZone("UTC")); echo "timestamp 0, constructed with default time zone, set to ".$oDateTest->getTimezone()->getName()." afterwards: " . $oDateTest->format("Y-m-d H:i:s")."<br />"; $oDateTest->setTimezone(new DateTimeZone(date_default_timezone_get())); echo "timestamp 0, constructed with default time zone, then set to UTC and then to default time zone (".$oDateTest->getTimezone()->getName().") again: " . $oDateTest->format("Y-m-d H:i:s")."<br />"; $oDateTest = new DateTime("@0"); echo "timestamp 0, constructed with default time zone (".$oDateTest->getTimezone()->getName()."): " . $oDateTest->format("Y-m-d H:i:s")."<br />"; $oDateTest->setTimezone( new DateTimeZone(date_default_timezone_get())); echo "timestamp 0, constructed with default time zone, explicitly set to default time zone (".$oDateTest->getTimezone()->getName().") afterwards: " . $oDateTest->format("Y-m-d H:i:s")."<br />"; Expected result: ---------------- timestamp 0, constructed with default time zone (Europe/Berlin): 1970-01-01 01:00:00 timestamp 0, constructed with default time zone, set to UTC afterwards: 1970-01-01 00:00:00 timestamp 0, constructed with default time zone, then set to UTC and then to default time zone (Europe/Berlin) again: 1970-01-01 01:00:00 timestamp 0, constructed with default time zone (Europe/Berlin): 1970-01-01 01:00:00 timestamp 0, constructed with default time zone, explicitly set to default time zone (Europe/Berlin) afterwards: 1970-01-01 01:00:00 Actual result: -------------- timestamp 0, constructed with default time zone (Europe/Berlin): 1970-01-01 00:00:00 (Either the time zone or the reported time is WRONG) timestamp 0, constructed with default time zone, set to UTC afterwards: 1970-01-01 00:00:00 timestamp 0, constructed with default time zone, then set to UTC and then to default time zone (Europe/Berlin) again: 1970-01-01 01:00:00 timestamp 0, constructed with default time zone (Europe/Berlin): 1970-01-01 00:00:00 (Either the time zone or the reported time is WRONG) timestamp 0, constructed with default time zone, explicitly set to default time zone (Europe/Berlin) afterwards: 1970-01-01 01:00:00 -- Edit bug report at http://bugs.php.net/?id=43003&edit=1 -- Try a CVS snapshot (PHP 4.4): http://bugs.php.net/fix.php?id=43003&r=trysnapshot44 Try a CVS snapshot (PHP 5.2): http://bugs.php.net/fix.php?id=43003&r=trysnapshot52 Try a CVS snapshot (PHP 5.3): http://bugs.php.net/fix.php?id=43003&r=trysnapshot53 Try a CVS snapshot (PHP 6.0): http://bugs.php.net/fix.php?id=43003&r=trysnapshot60 Fixed in CVS: http://bugs.php.net/fix.php?id=43003&r=fixedcvs Fixed in release: http://bugs.php.net/fix.php?id=43003&r=alreadyfixed Need backtrace: http://bugs.php.net/fix.php?id=43003&r=needtrace Need Reproduce Script: http://bugs.php.net/fix.php?id=43003&r=needscript Try newer version: http://bugs.php.net/fix.php?id=43003&r=oldversion Not developer issue: http://bugs.php.net/fix.php?id=43003&r=support Expected behavior: http://bugs.php.net/fix.php?id=43003&r=notwrong Not enough info: http://bugs.php.net/fix.php?id=43003&r=notenoughinfo Submitted twice: http://bugs.php.net/fix.php?id=43003&r=submittedtwice register_globals: http://bugs.php.net/fix.php?id=43003&r=globals PHP 3 support discontinued: http://bugs.php.net/fix.php?id=43003&r=php3 Daylight Savings: http://bugs.php.net/fix.php?id=43003&r=dst IIS Stability: http://bugs.php.net/fix.php?id=43003&r=isapi Install GNU Sed: http://bugs.php.net/fix.php?id=43003&r=gnused Floating point limitations: http://bugs.php.net/fix.php?id=43003&r=float No Zend Extensions: http://bugs.php.net/fix.php?id=43003&r=nozend MySQL Configuration Error: http://bugs.php.net/fix.php?id=43003&r=mysqlcfg
