3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php $date = new DateTime('last day of January 2017'); echo $date->format('Y-m-d');
Output for 5.6.0 - 5.6.30, hhvm-3.15.4, 7.0.0 - 7.2.0
2017-01-31