3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $date = new DateTime('2014-02-21'); echo $date->add(new DateInterval('P12M'))->format('Y-m-d') . "\n";
Output for 5.3.7 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
2015-02-21