3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $startYear = 2014; $lastTaken = 2018; $recurrenceYears = 3; $nextRequirement = $startYear + ((($lastTaken - $startYear) % $recurrenceYears)); var_dump($nextRequirement);
based on up8Vf
Output for 4.3.0 - 7.1.0
int(2015)