3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $d = date('Y-m-d',strtotime('January 31 2013' . ' + 3 months')); echo $d;
Output for 4.3.0 - 5.0.5, 5.1.2 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
2013-05-01
Output for 5.1.0 - 5.1.1
1970-01-01