I am working on a Symfony 2 app implemented by another company and came across the following service definition:
service_id:
class: 'path\to\class'
calls:
- [setRequest, ['@?request=']]
I know what the question mark in @?request= means (if the service does not exist, setRequest does not get called), but what does the equal sign at the end of mean?
Thanks!
The equal sign was used to tell the container to ignore scope violations. request is in a special scope and the container throws an exception if you use it in a different scope.
Scopes were deprecated in Sf 2.8 and removed in Sf 3.0. See https://symfony.com/doc/2.8/service_container/scopes.html
Also, as of Symfony 2.4 you should use the request_stack: http://symfony.com/blog/new-in-symfony-2-4-the-request-stack