Yii Mongodb Suite Return Array

[b]hello,

guys i used print_r to print my query

	$criteria = new EMongoCriteria();


	$criteria->clip_id = $clip_id;


	$data = img::model()->findAll($criteria);


            print_r($data);

the respond have many things i don’t know why :[/b]

[0] => img Object

(

[_id] => MongoId Object

(

[$id] => 55555555555

)

[number] => 5555555555 // that’s my only field

[_new:EMongoDocument:private] =>

[_criteria:EMongoDocument:private] =>

[_fsyncFlag:EMongoDocument:private] =>

[_safeFlag:EMongoDocument:private] =>

[useCursor:protected] =>

[ensureIndexes:protected] => 1

[_embedded:protected] =>

[_owner:protected] =>

[_errors:CModel:private] => Array

(

)

[_validators:CModel:private] =>

[_scenario:CModel:private] => update

[_e:CComponent:private] =>

[_m:CComponent:private] =>

)

what is all that ??