Im trying to send an array of data from the model to the controller but when I echo on controller, I only see the first value no all the array of the values. Whats wrong?

Model:

```
        $sql = "
        SELECT car_id
        FROM cars
        WHERE price= 1";

        $res = mysql_query($sql);

        $bought_cars= array();
        while ($row_ya = mysql_fetch_object($res)) 
        {
            $bought_cars[] = $row_ya->car_id;
        }
        foreach ($bought_cars as $bought_car) 
        {
                return $bought_car;
        }

```

Controller

```
$bought_car = $this->car_model->car();

echo($bought_car);

```

Thank you in Advance!