3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $startYear = 2014; $lastTaken = 2012; $recurrenceYears = 3; $nextRequirement = $lastTaken + ($recurrenceYears - (($lastTaken - $startYear) % $recurrenceYears)); echo $nextRequirement;
based on gPBuP
Output for 4.3.0 - 7.1.0
2017