Online PHP editor | refs for oAMnY

<?php function getQuarterEndingOf($month) { $quarterEndings = [ 1 => 'Mar', 2 => 'Mar', 3 => 'Mar', 4 => 'Jun', 5 => 'Jun', 6 => 'Jun', 7 => 'Sep', 8 => 'Sep', 9 => 'Sep', 10 => 'Dec', 11 => 'Dec', 12 => 'Dec', ]; $timeFormat = sprintf('%s %s', $quarterEndings[$month], date('Y') ); return new \DateTime($timeFormat); } for($m=1; $m <= 12; $m++) { var_dump(getQuarterEndingOf($m)); $d = new \DateTime(); var_dump($d->setDate(date('Y'), floor($m/3)*3,1)); echo '==='; }