Online PHP editor | refs for 4QDhv

<?php function sumTimes($time1, $time2) { list($hours1, $minutes1) = explode(':', $time1); list($hours2, $minutes2) = explode(':', $time2); $totalHours = $hours1 + $hours2; $totalMinutes = $minutes1 + $minutes2; if($totalMinutes >= 60){ $hoursInMins = floor($totalMinutes/60); $totalHours += $hoursInMins; $totalMinutes -= ($hoursInMins * 60); } return "$totalHours:$totalMinutes"; } echo sumTimes('15:00:00', '18:30:00') . PHP_EOL;