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<?php $array = [[1,2,3,4],[1,2,3,4],[3,4,5,6],[3,4,5,6]]; $result = []; foreach ($array as $row) { foreach ($row as $i => $v) { $result[$i][] = $v; } } var_export(array_reverse($result));

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24.97 ms | 405 KiB | 5 Q