library\App\View::__construct PHP Method

    public function __construct()
    {
        parent::__construct();
        // Initialize helper manager
        $this->_helperManager = new \Zend\View\HelperPluginManager();
        $this->_helperManager->setRenderer($this);
        // Inject form-related invokable helpers
        $helperConfig = new \Zend\Form\View\HelperConfig();
        $helperConfig->configureServiceManager($this->_helperManager);
    }