Online PHP editor | refs for PGnO7

<?php $array = [ "abc-abc" => [ [ "name" => "abc-abc-34", "qty" => 4, "sub_qty" => 4, "area" => "G11" ], [ "name" => "abc-abc-45", "qty" => 145, "sub_qty" => 146, "area" => "G11" ], [ "name" => "abc-abc-67", "qty" => 215, "sub_qty" => 100, "area" => "T, G12" ], [ "name" => "abc-abc-56", "qty" => 0 ] ], "def-def" => [ [ "name" => "abc-abc-34", "qty" => 4, "sub_qty" => 4, "area" => "G11" ], [ "name" => "abc-abc-45", "qty" => 145, "sub_qty" => 146, "area" => "G11" ], [ "name" => "abc-abc-56", "qty" => 0 ] ] ]; $array = array_map(function($x){ usort($x, function($a, $b){ return strnatcmp($a['name'], $b['name']); }); return $x; }, $array); print_r($array);