yii activerecord return object - arrays

Question

I am using using yii2 to in basic template with MySQL database
Why This code returns an object instead of an array of selected records from Database
when i use var_damp($rooms) the output is seems an object and not an array of selected record in array format;
any body can help
public function actionIndexFiltered()
{
$query = Room::find();
$searchFilter = [
'floor' => ['operator' => '', 'value' => ''],
'room_number' => ['operator' => '', 'value' => ''],
'price_per_day' => ['operator' => '', 'value' => ''],
];
if(isset($_POST['SearchFilter']))
{
$fieldsList = ['floor', 'room_number', 'price_per_day'];
foreach($fieldsList as $field)
{
$fieldOperator = $_POST['SearchFilter'][$field]['operator'];
$fieldValue = $_POST['SearchFilter'][$field]['value'];
$searchFilter[$field] = ['operator' => $fieldOperator, 'value' => $fieldValue];
if( $fieldValue != '' )
{
$temp1=$query->andWhere([$fieldOperator, $field, $fieldValue]);
}
}
}
$room1=$temp1->all();
$rooms = $query;
return $this->render('indexFiltered', [ 'rooms' => $rooms, 'searchFilter' => $searchFilter,'room1'=>$room1 ]);
}
Output is like this and this shows that this code return a query object and not an array of query execution on database ,
so i checked the code using var_dump function the results is that it is returning a object not array
object(yii\db\ActiveQuery)[70]
public 'sql' => null
public 'on' => null
public 'joinWith' => null
public 'select' => null
public 'selectOption' => null
public 'distinct' => null
public 'from' =>
array (size=1)
0 => string 'room' (length=4)
public 'groupBy' => null
public 'join' => null
public 'having' => null
public 'union' => null
public 'params' =>
array (size=0)
empty
private '_events' (yii\base\Component) =>
array (size=0)
empty
private '_behaviors' (yii\base\Component) =>
array (size=0)
empty
public 'where' =>
array (size=3)
0 => string '=' (length=1)
1 => string 'room_number' (length=11)
2 => string '3' (length=1)
public 'limit' => null
public 'offset' => null
public 'orderBy' => null
public 'indexBy' => null
public 'emulateExecution' => boolean false
public 'modelClass' => string 'app\models\Room' (length=15)
public 'with' => null
public 'asArray' => null
public 'multiple' => null
public 'primaryModel' => null
public 'link' => null
public 'via' => null
public 'inverseOf' => null

Answer 1

This code return an a dataProvider .. alias the code for get models /active record
$query = Room::find();
for obtain the all the models you can use
$roomModels= Room::find()->all();
in this the result is a collection of obejct (models) of class Room
if you need an array you can use
$roomArray = Room::find()->asArray()->all();

Answer 2

In your code $temp1 is the same as $query. andWhere() method returns $this which means that
$temp1 = $query->andWhere([$fieldOperator, $field, $fieldValue]);
makes $temp1 to be the same as $query which is object of yii\db\ActiveQuery.
Now you are calling this:
$room1 = $temp1->all(); // the same as $room1 = $query->all();
and this holds array of Room objects while
$rooms = $query;
is just another unnecessary assignment because $rooms is the same as $query which is object of yii\db\ActiveQuery.

Answer 3

Finally i found the reason for this problem is that
I must call asArray() member function of ActiveRecord class to generate an array output
$room1=$temp1->all(); will changed to $room1=$temp1->asArray()->all();