3v4l.org

run code in 500+ PHP versions simultaneously
<?php $today = new DateTime('today'); $delta = new DateInterval('PT0S'); $delta->f = 0.0001; $expectedLower = (clone $today) ->setTimezone(new DateTimeZone('UTC')) ->sub($delta); var_dump($expectedLower);
Output for 8.1.7 - 8.1.34, 8.2.0 - 8.2.35, 8.3.0 - 8.3.36, 8.4.1 - 8.4.27, 8.5.0 - 8.5.11, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30
object(DateTime)#3 (3) { ["date"]=> string(26) "2022-03-29 21:59:59.999900" ["timezone_type"]=> int(3) ["timezone"]=> string(3) "UTC" }
Output for 8.1.0 - 8.1.6
object(DateTime)#3 (3) { ["date"]=> string(26) "2022-03-29 22:00:00.999900" ["timezone_type"]=> int(3) ["timezone"]=> string(3) "UTC" }
preferences:
42.56 ms | 1516 KiB | 13 Q