3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php $firstDayNextMonth = date('Y-m-01', strtotime('first day of this month - 2 months', time())); echo $firstDayNextMonth;
based on SSW9t
Output for 5.3.0 - 7.2.0
2014-05-01
Output for 4.3.0 - 5.2.17
1970-01-01