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<?php var_dump( DateTimeImmutable::createFromFormat('Y-m-d', '2018-03-04')->format('Y-m-d H:i:s'), (new DateTimeImmutable('2018-03-04'))->format('Y-m-d H:i:s') );
Output for 7.1.0 - 7.1.33, 7.2.0 - 7.2.34, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.33, 8.2.0 - 8.2.29, 8.3.0 - 8.3.25, 8.4.1 - 8.4.12
string(19) "2018-03-04 09:09:21" string(19) "2018-03-04 00:00:00"
preferences:
107.49 ms | 407 KiB | 5 Q