3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php $a = "2014-04-01"; $b = "2015-03-31"; $i = date("Ym", strtotime($a)); while($i <= date("Y-m", strtotime($b))){ echo $i."\n"; if(substr($i, 4, 2) == "12") $i = (date("Y", strtotime($i."01")) + 1)."01"; else $i++; }
based on BZOmb
Output for 4.3.0 - 7.2.0
201404