migrate

function update_data_migration()
    {
        $driver_migration = $this->get_driver_migration();
        foreach($driver_migration as $data )
        {
            $query = "
                UPDATE users SET username = ?
                WHERE id = ?
            ";
            $this->db->query($query, array(md5($data->hp. microtime(). $data->email), $data->id));
        }
    }

    function get_driver_migration()
    {
        $driverMigration = $this->db->query(
            "
                SELECT *
                FROM users
                WHERE create_date = '2019-08-07 09:55:55'
                AND user_type_id = 50
            "
        )->result();

        return $driverMigration;
    }