Edit report at https://bugs.php.net/bug.php?id=53225&edit=1
ID: 53225 Updated by: dani...@php.net Reported by: i dot sonderegger at meteonews dot ch Summary: add-Method of DateTime-class -Status: Open +Status: Duplicate Type: Bug Package: Date/time related Operating System: Mac OS X 10.5.8 PHP Version: 5.3SVN-2010-11-02 (snap) -Assigned To: +Assigned To: danielc Block user comment: N Private report: N New Comment: This is a duplicate of https://bugs.php.net/bug.php?id=55253 Previous Comments: ------------------------------------------------------------------------ [2010-11-02 08:41:25] i dot sonderegger at meteonews dot ch Description: ------------ PHP-Version: PHP 5.3.99-dev (cli) (built: Nov 1 2010 17:42:09) Copyright (c) 1997-2010 The PHP Group Zend Engine v2.4.0, Copyright (c) 1998-2010 Zend Technologies If a timezone is passed in the time-string to the constructor of the DateTime-Object, a subsequent add() call could result in incorrect results (if the add() call oversteps a daylight-saving time). Test script: --------------- // Gives expected result $date = new DateTime('2010-10-31 01:00 CEST', new DateTimeZone("Europe/Zurich")); $date->setTimezone(new DateTimeZone('Europe/Zurich')); $date->add(new DateInterval('PT3H')); echo $date->format('Y-m-d H:i:sP')."\n"; // Doesn't give expected result $date = new DateTime('2010-10-31 01:00 CEST', new DateTimeZone("Europe/Zurich")); $date->add(new DateInterval('PT3H')); $date->setTimezone(new DateTimeZone('Europe/Zurich')); echo $date->format('Y-m-d H:i:sP')."\n"; Expected result: ---------------- 2010-10-31 04:00:00+01:00 2010-10-31 04:00:00+01:00 Actual result: -------------- 2010-10-31 04:00:00+01:00 2010-10-31 03:00:00+01:00 ------------------------------------------------------------------------ -- Edit this bug report at https://bugs.php.net/bug.php?id=53225&edit=1
