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<?php $array = [ "pentrose_50_rafhan_c_kgs" => 100, "pentrose_50_rafhan_c_issued_kgs" => 300, "pentrose_50_rafhan_c_rskg" => 99.1, "pentrose_50_rafhan_c_amount" => 29730, ]; $newArray[explode('_c_', current(($keys = array_keys($array))))[0]] = array_map(fn($key) => [explode('_c_', $key)[1] => $array[$key]], $keys); var_dump($newArray);

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