Bug #68495 [Opn->Nab]: Weekday calculated incorrectly using $weekDay = date('N', strtotime($date));

Edit report at https://bugs.php.net/bug.php?id=68495&edit=1 ID: 68495 Updated by: requinix@php.net Reported by: 8f181bd2 at opayq dot com Summary: Weekday calculated incorrectly using $weekDay = date('N', strtotime($date)); -Status: Open +Status: Not a bug Type: Bug Package: Date/time related Operating System: Windows PHP Version: 5.5Git-2014-11-25 (Git) Block user comment: N Private report: N New Comment: Congratulations, you've discovered the limitations of using 32-bit integers for timestamps. http://en.wikipedia.org/wiki/Year_2038_problem Unfortunately 64-bit builds for PHP on Windows are currently experimental so there is only one good solution: use just the DateTime family of classes for dealing with dates in the far future, as they do not have the problem that haunts the "normal" functions like strtotime() and date(). Previous Comments: ------------------------------------------------------------------------ [2014-11-25 06:40:42] 8f181bd2 at opayq dot com (edited title) ------------------------------------------------------------------------ [2014-11-25 06:39:20] 8f181bd2 at opayq dot com Exact PHP version is 5.5.11 (built: Apr 8 2014 15:07:14) ------------------------------------------------------------------------ [2014-11-25 06:25:45] 8f181bd2 at opayq dot com Description: ------------ Weekday calculated incorrectly for dates in the far future, using $weekDay = date('N', strtotime($date)); Test script: --------------- function getWeekday($date) { $dateTime = \DateTime::createFromFormat('m/d/Y', $date); $date = date_format($dateTime, 'm/d/Y'); $weekDay = date('N', strtotime($date)); return $weekDay; } $arr = ['01/04/2050' => 'Sun', '01/09/2050' => 'Tues', '07/04/2050' => 'Mon', '04/06/2014' => 'Sun', '10/22/2014' => 'Wed', '10/25/2014' => 'Sat', '11/23/2014' => 'Sun']; foreach($arr as $date => $shouldBe) { echo $date.' is on weekday '.getWeekday($date).' - This should be '.$shouldBe.'<br/>'; } Expected result: ---------------- 01/04/2050 is on weekday 0 - This should be Sun 01/09/2050 is on weekday 2 - This should be Tues 07/04/2050 is on weekday 1 - This should be Mon 04/06/2014 is on weekday 7 - This should be Sun 10/22/2014 is on weekday 3 - This should be Wed 10/25/2014 is on weekday 6 - This should be Sat 11/23/2014 is on weekday 7 - This should be Sun Actual result: -------------- 01/04/2050 is on weekday 4 - This should be Sun 01/09/2050 is on weekday 4 - This should be Tues 07/04/2050 is on weekday 4 - This should be Mon 04/06/2014 is on weekday 7 - This should be Sun 10/22/2014 is on weekday 3 - This should be Wed 10/25/2014 is on weekday 6 - This should be Sat 11/23/2014 is on weekday 7 - This should be Sun ------------------------------------------------------------------------ -- Edit this bug report at https://bugs.php.net/bug.php?id=68495&edit=1