Symfony2 Twig extension

Question

I have some problem to implement twig extension. I need to create my own filter (a substr filter). So I have thought to use twig extension.

I created a folder named \"Ex

Answer 1

Replace this

namespace Bundle\WebsiteBundle\Extension;

By this

namespace MyApp\Bundle\WebsiteBundle\Extension;

And for what your need dir Bundle/WebsiteBundle?
Is Bundle is not enough?

Your can see here how I implement this https://github.com/azat/blog/blob/master/src/Blog/WebBundle/Twig/Extension/WebExtension.php