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<?php // $matrix = [ // [1, 2, 3], // [4, 5, 6], // [7, 8, 9], // ]; $matrix = [ [1, 2], [3, 4] ]; var_export(array_map(fn() => array_reverse(func_get_args()), ...$matrix)); echo "\n---\n"; var_export(array_map(fn(...$col) => array_reverse($col), ...$matrix));
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