Bug #63392 [Opn]: DateTime::modify() start of week inconsistency

Edit report at https://bugs.php.net/bug.php?id=63392&edit=1 ID: 63392 Updated by: pajoye@php.net Reported by: chris at cmbuckley dot co dot uk Summary: DateTime::modify() start of week inconsistency Status: Open Type: Bug Package: Date/time related PHP Version: 5.4Git-2012-10-30 (snap) -Assigned To: +Assigned To: derick Block user comment: N Private report: N New Comment: See also PR https://github.com/php/php-src/pull/224 Previous Comments: ------------------------------------------------------------------------ [2012-10-30 02:26:30] chris at cmbuckley dot co dot uk Description: ------------ Calling $dt->modify("Monday this week") for all dates 13–19 May 2012 (Sun–Sat) result in the same date (2012-05-14), suggesting that "this week" runs Sun–Sat. However, calling $dt->modify("Sunday this week") gives the "next" Sunday (2012- 05-20) for the same range. On a related note, the documentation on relative date formats is lacking on the behaviour of this and strtotime when used with locales; one might expect the start of the week to be interpreted from LC_TIME. Test script: --------------- <?php $dt = new DateTime("2012-05-13"); $dt->modify("Sunday this week"); var_dump($dt->format('r')); Expected result: ---------------- string(31) "Sun, 13 May 2012 00:00:00 +0000" Actual result: -------------- string(31) "Sun, 20 May 2012 00:00:00 +0000" ------------------------------------------------------------------------ -- Edit this bug report at https://bugs.php.net/bug.php?id=63392&edit=1