树枝扩展渲染html

Question

I want to create a twig function extension that render a twig template for a menu

/**
 * Return the functions registered as twig extensions
 *
 * @return array
 */
public function getFunctions()
{
    return array(
        new \Twig_SimpleFunction('my_menu', array($this, 'myMenu')),
    );
}

my function

/** render a dropdown with link to conversation
 * @return string
 */
public function myMenu(\Twig_Environment $environment, $typeMenu, $menuId)
{

    return $environment->render('@menuDopdown.html.twig', array(
        'typeMenu' => $typeMenu,
    ));
}

but when i call the function i have a exeption for parametre 1

{{ my_menu(4,1280) }}

Type error: Argument 1 passed to MenuBundle\\Twig\\TwigMenuExtension::myMenu() must be an instance of Twig_Environment, integer given, called in ...\\app\\cache\\dev\\twig\\07\\07a15176de77b3d862b64747d9728e117749b97e55d1082eb0f0eec4ffaf12d8.php on line 164

Answer 1

add this function, before your myMenu function, so twig will automatically pass the environment

public function getFunctions()
{
return array(
    new \Twig_SimpleFunction(
        'myMenu',
        array($this, 'myMenu'),
        array('needs_environment' => true)
    ),
);
}

or check this link for more details Render template from twig extension