Online PHP editor | refs for 3jNft

<?php $array = [ [ ['2018-06-13' => "hadir"], ['2018-06-12' => "hadir"], ['2018-06-11' => "alfa"] ], [ ['2018-06-13' => "hadir"], ['2018-06-12' => "hadir"], ['2018-06-11' => "hadir"] ] ]; var_export( array_reduce( $array, function ($carry, $item) { $carry[] = array_merge(...$item); return $carry; }, [] ) ); echo "\n---\n"; foreach ($array as &$sub1) { $sub1 = array_merge(...$sub1); } var_export($array);