Changes
                            
    Title
    unchanged
    Load data from internal/external source to fill form fields
    Category
    unchanged
    How-tos
    Yii version
    unchanged
    
    Tags
    unchanged
    get, json, form, Jquery, Remote Data, lifedup
    Content
    changed
    [...]
use yii\helpers\Html;
use yii\web\Response;
public function actionGetLocationAddress($id) {        
        Yii::$app->response->format = Response::FORMAT_JSON;
        //echo JSON data for Get request to read
 
        //always want to encode user input
 
        echo Locations::find()->where('id = :id', [':id' => $id])->one();
    }
```
Since the function is camelCased you should note that it needs to accessed like.
userlocations/get-location-address[...]