在Symfony中创建全局函数的最佳方法[重复]

Question

This question already has an answer here:

• Symfony2 global functions 2 answers

I would like to know what is the best way to create a global function in Symfony 3.

I'll provide an example: On my website, you can subscribe to the newsletter. When you do, it sends you an email to thank you. The user can do this on many pages.

So I would like to create it once, and use the sending mail function in all the controllers that need it.

Do I have to create it as a class in the app, or do I have to create a bundle specially for it?

I found this answer, but not sure it's the best: Symfony2 global functions

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Answer 1

The best way to do it is Services and Service Container. Just create the service you need and either inject it into controller or use $this->get('your.service.name')->... in controller.