Bug #77097 [Com]: DateTime::diff gives wrong diff when the actual diff is less than 1 second

Edit report at https://bugs.php.net/bug.php?id=77097&edit=1 ID: 77097 Comment by: wyatt at wyday dot com Reported by: vishnunn at ymail dot com Summary: DateTime::diff gives wrong diff when the actual diff is less than 1 second Status: Verified Type: Bug Package: Date/time related Operating System: CentOS Linux 7.5.1804 PHP Version: 7.3.0RC4 Assigned To: derick Block user comment: N Private report: N New Comment: I've also reported this bug on the timelib repository with more details: https://github.com/derickr/timelib/issues/51 Previous Comments: ------------------------------------------------------------------------ [2018-11-22 14:31:22] wyatt at wyday dot com We can confirm this bug exists on PHP 7.3.0 RC5 (for our development machines) and PHP 7.2.12 for our production machines. This is a showstopper for us. We've had to rollback to 7.2.11 on our production machines and we'll be unable to upgrade to any new version until this bug is fixed. It looks like it's related to the latest timelib upgrade. It looks like you should revert that change in the next version until all the edge cases are solved. ------------------------------------------------------------------------ [2018-11-13 13:42:16] cmb@php.net Related To: Bug #77145 ------------------------------------------------------------------------ [2018-11-09 06:04:01] sakari dot laine at verkkokauppa dot com Affects also 7.2.12 ------------------------------------------------------------------------ [2018-11-08 09:55:53] cmb@php.net Related To: Bug #77121 ------------------------------------------------------------------------ [2018-11-03 12:21:15] cmb@php.net I can confirm a behavioral change, albeit I get a slightly different result with PHP-7.3 (@9afce01), where 'f' is float(0.218249). This would basically still be somehow correct, but if I request an $absolute result, I still get an identical result, which is certainly not correct. Derick, could you please have a look at this? ------------------------------------------------------------------------ The remainder of the comments for this report are too long. To view the rest of the comments, please view the bug report online at https://bugs.php.net/bug.php?id=77097 -- Edit this bug report at https://bugs.php.net/bug.php?id=77097&edit=1