3v4l.org

run code in 300+ PHP versions simultaneously
<?php $date = "2016-01-30"; $date = date('Y-m-d', strtotime("last day of next month",strtotime($date))); echo $date;
Output for 5.6.0 - 5.6.38, 7.0.0 - 7.0.32, 7.1.0 - 7.1.33, 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 - 8.1.31, 8.2.0 - 8.2.26, 8.3.0 - 8.3.14, 8.4.1
2016-02-29

preferences:
77.25 ms | 407 KiB | 5 Q