Online PHP editor | refs for s67NV

<?php $data = [ [ 'ID' => 16, 'begin_date' => new \DateTime('2016-01-01 UTC'), 'end_date' => new \DateTime('2016-11-30 UTC'), ], [ 'ID' => 33, 'begin_date' => new \DateTime('2015-01-04 UTC'), 'end_date' => new \DateTime('2016-02-29 UTC'), ], ]; // for programs that run over multiple seconds this makes sure we don't drift during sorting $now = new \DateTime('now'); usort($data, function($a, $b) { // Note PHP 7 <=> doesn't work on \DateTime if($a['end_date'] == $b['end_date']) { return 0; } return $a['end_date'] > $b['end_date'] ? 1 : -1; }); var_dump($now); var_dump($data); // pick the first element that meets the criteria foreach($data as $index => $element) { if($element['begin_date'] < $now) { // first condition is invalidated echo "begin_date invalidated ID #".$element['ID'].PHP_EOL; continue; } else { var_dump($element); } }