Bug #76785 [Com]: DateTime construction with a negative year argument shows different behaviours

Edit report at https://bugs.php.net/bug.php?id=76785&edit=1 ID: 76785 Comment by: bjoern dot fischer at dezem dot de Reported by: thijs at tsjeng dot nl Summary: DateTime construction with a negative year argument shows different behaviours Status: Open Type: Bug Package: Date/time related PHP Version: Irrelevant Block user comment: N Private report: N New Comment: We are affected by this issue too. It can be easily reproduced here: https://3v4l.org/LY6FJ Previous Comments: ------------------------------------------------------------------------ [2018-08-23 17:10:15] requinix@php.net Fortunately 'U' already supports signed numbers so extending that to 'Y' shouldn't be difficult. ------------------------------------------------------------------------ [2018-08-23 15:29:40] thijs at tsjeng dot nl Description: ------------ DateTime object instantiation with negative input string via 'createFromFormat' and same argument just as construction argument display weird behaviour. Test script: --------------- var_dump(DateTime::createFromFormat('Y-m-d', '0045-01-01')); // works var_dump(DateTime::createFromFormat('Y-m-d', '-0045-01-01')); // false var_dump(DateTime::createFromFormat('-Y-m-d', '-0045-01-01')); // works, but year is positive instead of negative var_dump(new DateTime('0045-01-01')); // works var_dump(new DateTime('-0045-01-01')); // works var_dump(new DateTime('0045/01/01')); // works var_dump(new DateTime('-0045/01/01')); // exception ------------------------------------------------------------------------ -- Edit this bug report at https://bugs.php.net/bug.php?id=76785&edit=1