yii\base\View::renderPhpFile PHP Метод

    public function renderPhpFile($_file_, $_params_ = [])
    {
        ob_start();
        ob_implicit_flush(false);
        extract($_params_, EXTR_OVERWRITE);
        require $_file_;
        return ob_get_clean();
    }

 /**
  * Renders a view file.
  *
  * This method is invoked by [[View]] whenever it tries to render a view.
  * Child classes must implement this method to render the given view file.
  *
  * @param View $view the view object used for rendering the file.
  * @param string $file the view file.
  * @param array $params the parameters to be passed to the view file.
  * @return string the rendering result
  */
 public function render($view, $file, $params)
 {
     $this->encodeParams($params);
     return $view->renderPhpFile($file, $params);
 }