3v4l.org

run code in 300+ PHP versions simultaneously
<?php $interval = new DateInterval("2008-05-11T15:30:00Z/2007-03-01T13:00:00Z"); var_dump($interval->invert);
Output for 7.1.25, 7.2.0 - 7.2.33, 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
int(1)
preferences:
105.57 ms | 407 KiB | 5 Q