Online PHP editor | output for WoAiN

<?php $tests = [ '2016-01','2016-02','2016-03','2016-04','2016-05','2016-06','2016-07','2016-08','2016-09','2016-10','2016-11','2016-12', '2018-01','2018-02','2018-03','2018-04','2018-05','2018-06','2018-07','2018-08','2018-09','2018-10','2018-11','2018-12', ]; foreach($tests as $test) { $start = new DateTime($test); $end = intval((clone $start)->modify('last day of this month')->format('W')); if($end < 2) $end = intval((clone $start)->modify('last sunday of this month')->format('W')) + 1; $start = intval($start->format('W')); if($start > 51) $start = 0;$weeks = $end - $start + 1; echo "$test = $weeks\n"; }