3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php $c = new DateTime(); $c->add(new DateInterval('P23D')); echo $c->format('Y/m/d'); echo '<br>'; $c->add(new DateInterval('P1M')); echo $c->format('Y/m/d');
based on ZPNCa
Output for 5.3.20 - 5.4.45, 5.6.28, 7.0.20 - 7.2.0
2015/12/31<br>2016/01/31
Output for 7.0.6
2016/05/26<br>2016/06/26
Output for 7.0.5
2016/04/26<br>2016/05/26
Output for 7.0.4
2016/04/02<br>2016/05/02
Output for 7.0.3
2016/04/10<br>2016/05/10
Output for 7.0.2
2016/04/15<br>2016/05/15
Output for 7.0.1
2016/04/16<br>2016/05/16
Output for 7.0.0
2016/04/19<br>2016/05/19
Output for 5.6.21
2016/05/25<br>2016/06/25
Output for 5.6.20
2016/05/03<br>2016/06/03
Output for 5.6.19
2016/03/31<br>2016/05/01
Output for 5.6.18
2016/04/07<br>2016/05/07
Output for 5.6.17
2016/04/12<br>2016/05/12
Output for 5.6.16
2016/04/20<br>2016/05/20
Output for 5.6.15
2016/04/21<br>2016/05/21
Output for 5.6.14
2016/05/07<br>2016/06/07
Output for 5.6.13
2016/05/08<br>2016/06/08
Output for 5.6.12
2016/05/13<br>2016/06/13
Output for 5.6.11
2016/05/17<br>2016/06/17
Output for 5.6.10
2016/05/18<br>2016/06/18
Output for 5.6.9
2016/05/20<br>2016/06/20
Output for 5.6.8
2016/05/23<br>2016/06/23
Output for 5.5.35
2016/06/15<br>2016/07/15
Output for 5.5.34
2016/05/04<br>2016/06/04
Output for 5.5.33
2016/04/01<br>2016/05/01
Output for 5.5.32
2016/04/09<br>2016/05/09
Output for 5.5.31
2016/04/13<br>2016/05/13
Output for 5.5.30
2016/04/24<br>2016/05/24
Output for 5.5.29
2016/05/10<br>2016/06/10
Output for 5.5.28
2016/05/14<br>2016/06/14
Output for 5.5.27
2016/05/15<br>2016/06/15
Output for 5.5.26
2016/05/19<br>2016/06/19
Output for 5.5.25
2016/05/22<br>2016/06/22
Output for 5.5.24
2016/06/16<br>2016/07/16