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<?php $array = [ '2019-09-28' => [ 'A' => 4, 'B' => 85, 'C' => 200, ], '2019-09-29' => [ 'A' => 5, 'B' => 83, 'C' => 202, ] ]; $res = []; foreach ($array as $key => $item) { foreach ($item as $itemKey => $itemValue) { $res[$itemKey][$key] = $itemValue; } } print_r($res);
Output for 7.1.25 - 7.1.32, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.33, 8.2.0 - 8.2.29, 8.3.0 - 8.3.25, 8.4.1 - 8.4.12
Array ( [A] => Array ( [2019-09-28] => 4 [2019-09-29] => 5 ) [B] => Array ( [2019-09-28] => 85 [2019-09-29] => 83 ) [C] => Array ( [2019-09-28] => 200 [2019-09-29] => 202 ) )
preferences:
168.52 ms | 408 KiB | 5 Q