3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = (new \DateTimeImmutable('2022-05-01 22:00:00'))->modify('+-30 seconds'); var_dump($a);
Output for 7.4.0 - 7.4.33, 8.0.1 - 8.0.30, 8.1.0 - 8.1.33, 8.2.25 - 8.2.29, 8.3.13 - 8.3.25, 8.4.1 - 8.4.12
object(DateTimeImmutable)#2 (3) { ["date"]=> string(26) "2022-05-01 21:59:30.000000" ["timezone_type"]=> int(3) ["timezone"]=> string(16) "Europe/Amsterdam" }
Output for 8.2.0 - 8.2.24, 8.3.0 - 8.3.12
object(DateTimeImmutable)#2 (3) { ["date"]=> string(26) "2022-05-01 22:00:30.000000" ["timezone_type"]=> int(3) ["timezone"]=> string(16) "Europe/Amsterdam" }

preferences:
77.18 ms | 407 KiB | 5 Q