Description

By default, Symfony loads the configuration files defined in YAML and PHP formats. When creating a new Symfony project, Symfony Flex uses the YAML config files provided in the recipes.

IMO, PHP config files are more convenient than YAML config for the following reasons:

• Better integration in our IDE without any additional plugin
• Deprecations are warned early
• No need to run the code to see errors types in our config files
• Allows you to create dynamic configuration with arrays or config builder
• Our favorite CI tools can watch config files too

The main "drawback" is that config classes are generated in cache when running cache:clear and those files need to be included in your IDE index.

I think we should encourage devs to use PHP format for config files, and it can start by providing config files in PHP format.

What are your thoughts about this ? Do you write your config files with PHP files ? Why ? Why not ?

I'm opening discussions to get feedback about the use of PHP in config and see if it's relevant or not.

Example

No response