3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php $d = new DateTime(); echo $d->format(DateTime::W3C);
Output for 5.6.30 - 5.6.38, hhvm-3.15.4, hhvm-3.18.5 - 3.21.3, 7.0.0 - 7.3.0
2018-08-04T15:58:29+02:00
Output for hhvm-3.18.4, hhvm-3.22.0
2018-08-04T15:58:30+02:00