i've create dropdownlist like this : 

```
<?= $form->field($model, 'doctor_id')->widget(select2::className(),[
   'data'=>  arrayhelper::map(\app\models\doctors::find()->asArray()->all(),'doctor_id',
        function($model, $defaultValue) {
          return $model['doctor_name'].' | '. $model['doctor_id'].' | '. $model['phone1'] ;
}),
 // 'languge'=>'en',
   'options'=>['placeholder'=>'... إختر اسم الطبيب','class' => 'yuorClass'],
   'pluginOptions'=>[
   'allowClear'=>true
   ],
   ])?>

```

so i need to add html tag between the rows like `<br>` like this `$model['doctor_name'].' - '. $model['doctor_id'].' <br> '. $model['phone1'] ;`

as the picture in here 

[![enter image description here](https://i.stack.imgur.com/Xu5fS.png)](https://i.stack.imgur.com/Xu5fS.png)