Bug #67863 [NEW]: datetime->sub does not work well

From: teamo dot um1 at mail dot ru Operating system: linux PHP version: 5.4.31 Package: Date/time related Bug Type: Bug Bug description:datetime->sub does not work well Description: ------------ subsription of months does not work well for the last day of month Test script: --------------- $date = new \DateTime(); $date->setDate(2014, 7, 31); $date->setTime(0,0,0); print($date->format('Y-m-d'))."\n"; $date->sub(new \DateInterval('P1M')); print($date->format('Y-m-d'))."\n"; ->> 2014-07-31 ->> 2014-07-01 must be 2014-06-30 $date->setDate(2014, 8, 31); ->> 2014-08-31 ->> 2014-07-31 ok -- Edit bug report at https://bugs.php.net/bug.php?id=67863&edit=1 --