Online PHP editor | refs for Fq9U5

<?php $arr = [ ['name' => 'Mathmatics', 'time' => '03:01:PM - 04:50:PM'], ['name' => 'History', 'time' => '11:30:AM - 01:30:PM'], ['name' => 'French', 'time' => '01:31:PM - 03:00:PM'], ]; usort($arr,function($a,$b){ $dta = DateTime::createFromFormat('h:i:A',substr($a['time'],0,8)); $dtb = DateTime::createFromFormat('h:i:A',substr($b['time'],0,8)); return $dta <=> $dtb; }); print_r($arr);