YII框架获取对象数组为普通数组方法

获取方式

$admin = $identity->getAdmin();
$data = $admin->getAttributes();

echo $data["id"];

$identity 对象数组结构：

AdminUserIdentity Object
(
    [admin:AdminUserIdentity:private] => Admin Object
        (
            [_new:CActiveRecord:private] => 
            [_attributes:CActiveRecord:private] => Array
                (
                    [id] => 1
                    [username] => admin
                    [name] => 绠＄悊鍛�
                    [password] => 8cd2ad7c48d06c24d3d2488bc271c55f
                    [email] => admin@sina.com
                    [login_time] => 1492167402
                    [login_ip] => 1.202.19.127
                    [create_time] => 1394072037
                    [salt] => ABCDEF
                    [role_id] => 1
                    [status] => 2
                    [update_time] => 1489049943
                    [ip_access] => 2
                )

            [_related:CActiveRecord:private] => Array
                (
                )

            [_c:CActiveRecord:private] => 
            [_pk:CActiveRecord:private] => 1
            [_alias:CActiveRecord:private] => t
            [_errors:CModel:private] => Array
                (
                )

            [_validators:CModel:private] => 
            [_scenario:CModel:private] => update
            [_e:CComponent:private] => 
            [_m:CComponent:private] => 
        )

    [username] => admin
    [password] => 123456
    [errorCode] => 0
    [errorMessage] => 
    [_state:CBaseUserIdentity:private] => Array
        (
        )

    [_e:CComponent:private] => 
    [_m:CComponent:private] => 
)