3v4l.org

run code in 500+ PHP versions simultaneously
<?php $datetime = new \DateTime('2022-07-31 00:00:00'); var_export($datetime->format('Y-m-d H:i:s')); $datetime->modify('last day of previous month'); var_export($datetime->format('Y-m-d H:i:s'));
Output for 7.4.0 - 7.4.33, 8.0.1 - 8.0.30, 8.1.0 - 8.1.34, 8.2.0 - 8.2.30, 8.3.0 - 8.3.30, 8.4.1 - 8.4.18, 8.5.0 - 8.5.3
'2022-07-31 00:00:00''2022-06-30 00:00:00'
preferences:
87.2 ms | 1248 KiB | 4 Q