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<?php $json = <<<EOT { "data": [ { "product_id": "123456", "item": "ZAD", "time": "15:30", "quantity": 1 }, { "product_id": "24534", "item": "REST", "time": "5:30", "quantity": 1 }, { "product_id": "123456", "item": "RAD", "time": "10:30", "quantity": 2 } ] } EOT; $d_data = json_decode($json, true); $f_data = $d_data['data']; $result = []; foreach($f_data as $data) { $result[$data['product_id']][$data['item']] = [ $data['time'], $data['quantity'] ]; } print_r($result);