CSRF token validation in Controller is confusing

[enumag]

http://symfony.com/doc/current/controller/csrf_token_validation.html

In the example code the $submittedToken variable does not exist. I'd send a pull request but I don't know what the correct code should be here. I assume there are multiple ways - but there should be some example where to create the token, how to pass it to the action and how to get it these.

[xabbuh]

I would just add a placeholder comment (// ...) before the check. How you read the token from the request (for example, by getting some data from the form or by accessing the request's $request parameter bag) does not really matter for the example.

[javiereguiluz]

Fixed by #8873.