Online PHP editor | refs for mqCc6

<?php $array = [ 11 => [ 4 => 'apr11timetable.php', 8 => 'aug11timetable.php', 6 => 'jun11timetable.php', 11 => 'nov11timetable.php', 10 => 'oct11timetable.php' ], 12 => [ 4 => 'apr12timetable.php', 8 => 'aug12timetable.php', 2 => 'feb12timetable.php', 6 => 'jun12timetable.php', 10 => 'oct12timetable.php' ] ]; krsort($array); array_walk($array, fn(&$v) => krsort($v)); var_export($array);