Connecting PHP file in controller?

Question

Yii

Good afternoon!
It is necessary to include a php file of a third-party library.
Located at the root of the folder.
Everything is fine in the view, but how to connect it in the controller?

public function actionGoogle() {
    require_once Yii::$app->basePath.'\google\GoogleAuthenticator.php';
    $ga = new GoogleAuthenticator;
    return $this->render('google', [
      	'ga' => $ga
      ]);

Accordingly, I get an error to the line $ga = new GoogleAuthenticator;

Answer 1

Working with third party code

Answer 2

Good evening.
Check out the namespace .
Example.
The file is located in the components directory
In the required file, specify the location where the required file is located

//указываете пространство имён
use components\GoogleAuthenticator;

//используете
 $ga = new GoogleAuthenticator;