3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php for ($t = 1483228800000; $t <= strtotime("now +1 year")*1000; $t=strtotime('+1 month', $t/1000)*1000) { echo $t.","; }
based on v3I4v
Output for 5.6.0 - 7.1.7
1483228800000,1485907200000,1488326400000,1491001200000,1493593200000,1496271600000,1498863600000,1501542000000,1504220400000,1506812400000,1509494400000,1512086400000,1514764800000,