Online PHP editor | refs for qGLjU

@ 2014-10-29T20:43:45Z

<?php

$startYear = 2014;
$modYear = 3;
$lastTaken = 2017;
$currentYear = 2021;

$useYear = min($lastTaken, $currentYear);

$nextYear = $useYear + ($modYear - (($useYear - $startYear) % $modYear));

echo $nextYear;