3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php $startYear = 2014; $lastTaken = 2015; $recurrenceYears = 3; $nextRequirement = $lastTaken + ($recurrenceYears - (($lastTaken - $startYear) % $recurrenceYears)); echo ($lastTaken - $startYear); echo $nextRequirement;
based on XbEUW
Output for 4.3.0 - 7.2.0
12017