3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php $c = new DateTime("first day next month"); echo $c->format('Y/m/d');
based on iiAPU
Output for 5.3.20 - 5.4.45, 5.6.28, 7.0.20 - 7.2.0
2016/01/09
Output for 7.0.6
2016/06/04
Output for 7.0.5
2016/05/04
Output for 7.0.4
2016/04/11
Output for 7.0.3
2016/04/19
Output for 7.0.2
2016/04/24
Output for 7.0.1
2016/04/25
Output for 7.0.0
2016/04/28
Output for 5.6.21
2016/06/03
Output for 5.6.20
2016/05/11
Output for 5.6.19
2016/04/09
Output for 5.6.18
2016/04/16
Output for 5.6.17
2016/04/21
Output for 5.6.16
2016/04/29
Output for 5.6.15
2016/04/30
Output for 5.6.14
2016/05/15
Output for 5.6.13
2016/05/16
Output for 5.6.12
2016/05/21
Output for 5.6.11
2016/05/25
Output for 5.6.10
2016/05/26
Output for 5.6.9
2016/05/28
Output for 5.6.8
2016/05/31
Output for 5.5.35
2016/06/24
Output for 5.5.34
2016/05/12
Output for 5.5.33
2016/04/10
Output for 5.5.32
2016/04/18
Output for 5.5.31
2016/04/22
Output for 5.5.30
2016/05/02
Output for 5.5.29
2016/05/18
Output for 5.5.28
2016/05/22
Output for 5.5.27
2016/05/23
Output for 5.5.26
2016/05/27
Output for 5.5.25
2016/05/30
Output for 5.5.24
2016/06/25