Online PHP editor | refs for RfMsE

<?php $MainArray = array('PHILIPPINES' => array( 'SUPERIOR KING ROOM' => array( '2021-12-05' => array('total' => 1, 'revenue' => 600.00), '2021-12-06' => array('total' => 4, 'revenue' => 534.00), ), '3D KING ROOM' => array( '2021-12-05' => array('total' => 3, 'revenue' => 320.00), '2021-12-06' => array('total' => 1, 'revenue' => 0.00) ), ), 'AUSTRALIA' => array( 'PRESIDENTIAL SUITE' => array('2021-12-05' => array('total' => 4, 'revenue' => 888.00)), 'DELUXE ROOM' => array('2021-12-06' => array('total' => 1, 'revenue' => 0.00)), ), ); /* sort by country name */ foreach ($MainArray as $key => $country){ $ord[] = $key; } array_multisort($ord, SORT_ASC, $MainArray); print_r($MainArray );