3v4l.org

run code in 300+ PHP versions simultaneously
<?php $d = new DateTime('2023-03-15'); $d->setTimezone(new DateTimeZone('Asia/Tokyo')); $diff = $d->diff(new DateTime('2023-03-15 -1 day +1 microsecond') ); echo $diff->days, "\n";
Output for 8.0.1 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.7
1

preferences:
85.99 ms | 402 KiB | 90 Q