Bug #76634 [Nab]: setISODate sets current time(date is correct)

Edit report at https://bugs.php.net/bug.php?id=76634&edit=1 ID: 76634 User updated by: bebd75kv6a at p6wsw dot anonbox dot net Reported by: bebd75kv6a at p6wsw dot anonbox dot net Summary: setISODate sets current time(date is correct) Status: Not a bug Type: Bug Package: Date/time related Operating System: Ubuntu 16 PHP Version: 7.0.30 Block user comment: N Private report: N New Comment: ok Previous Comments: ------------------------------------------------------------------------ [2018-07-17 01:33:12] a at b dot c dot de Or use DateTime::setTime() to set the time (same as if you used setDate to set the date). ------------------------------------------------------------------------ [2018-07-17 00:58:38] requinix@php.net setISODate() is meant to set the date, which is why it should not set the time as well. Your problem is with the "new DateTime()" portion. That defaults to the current time. If you want something repeatable then you need to give it a fixed initial date. https://3v4l.org/6hbDZ ------------------------------------------------------------------------ [2018-07-16 17:51:52] bebd75kv6a at p6wsw dot anonbox dot net Description: ------------ I found out that setISODate function does not set timestamp as expected. It sets proper date but time seems to be taken from current timestamp. I know that it is meant to set date but it should set 00:00:00 for time part to ensure repeatable results. Test script: --------------- $date='2018-06-29 00:00:00'; $startDate=(new DateTime())->setISODate(date('Y',strtotime($date)),date('W',strtotime($date)))->format('Y-m-d H:i:s'); $endDate=(new DateTime())->setISODate(date('Y',strtotime($date)), date('W',strtotime($date)), 7)->format('Y-m-d H:i:s'); $startTimestamp = (new DateTime())->setISODate(date('Y',strtotime($date)),date('W',strtotime($date)))->getTimestamp(); echo 'input = '.$date; echo '<br/>strtotime = '.strtotime($date); echo '<br/>setISODate->getTimestamp = '; echo $startTimestamp; echo '</br>startDate = '.$startDate.'<br/>endDate = '.$endDate; Expected result: ---------------- input = 2018-06-29 00:00:00 strtotime = 1530244800 setISODate->getTimestamp = 1529899200 startDate = 2018-06-25 00:00:00 endDate = 2018-07-01 00:00:00 Actual result: -------------- input = 2018-06-29 00:00:00 strtotime = 1530244800 setISODate->getTimestamp = 1529946301 startDate = 2018-06-25 13:05:01 endDate = 2018-07-01 13:05:01 or bit later: input = 2018-06-29 00:00:00 strtotime = 1530244800 setISODate->getTimestamp = 1529946704 startDate = 2018-06-25 13:11:44 endDate = 2018-07-01 13:11:44 ------------------------------------------------------------------------ -- Edit this bug report at https://bugs.php.net/bug.php?id=76634&edit=1