LaravelBook\Laravel4Powerpack\Providers\PowerpackServiceProvider::register PHP Метод

    public function register()
    {
        $this->app['html'] = $this->app->share(function ($app) {
            return new HTML($app['url']);
        });
        $this->app['form'] = $this->app->share(function ($app) {
            return new Form($app['html']);
        });
        $this->app['str'] = $this->app->share(function ($app) {
            return new Str();
        });
    }