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<?php $dt = new DateTime('2015-01-01 00:00:00+00:00'); var_dump($dt->format('c')); var_dump($dt->modify('+1 s')->format('c')); $dt = new DateTimeImmutable('2015-01-01 00:00:00+00:00'); var_dump($dt->format('c')); var_dump($dt->modify('+1 s')->format('c'));
Output for 8.1.15 - 8.1.17, 8.2.2 - 8.2.4
string(25) "2015-01-01T00:00:00+00:00" string(25) "2015-01-01T00:00:00+01:00" string(25) "2015-01-01T00:00:00+00:00" string(25) "2015-01-01T00:00:00+01:00"
Output for 8.0.1 - 8.0.30, 8.1.0 - 8.1.14, 8.1.18 - 8.1.34, 8.2.0 - 8.2.1, 8.2.5 - 8.2.34, 8.3.0 - 8.3.35, 8.4.1 - 8.4.26, 8.5.0 - 8.5.11
string(25) "2015-01-01T00:00:00+00:00" string(25) "2015-01-01T00:00:00+00:00" string(25) "2015-01-01T00:00:00+00:00" string(25) "2015-01-01T00:00:00+00:00"
preferences:
36.46 ms | 1151 KiB | 15 Q