I have to replicate all config file for each environment - php

Question

I try to add some config in config/* directory.
I'll use a very simple example, to illustrate the problem, but keep in mind that this problem occur for every .yaml config files for any services. I am not able to make inheritance between config files.
So in services.yaml I have this code :
#config/services.yaml
parameters:
app.debug: 0
smtp.user: ''
app.locale: '%kernel.default_locale%'
app.product.number_per_page: 20
container.dumper.inline_factories: true
services:
# default configuration for services in *this* file
_defaults:
autowire: true # Automatically injects dependencies in your services.
autoconfigure: true # Automatically registers your services as commands, event subscribers, etc.
bind:
$locale: '%kernel.default_locale%'
$product_per_page: '%app.product.number_per_page%'
And then i try to access $product_per_page into my controller :
#src/Controller/myController.php
public function listProduct(int $product_per_page){
dump($product_per_page);
die();
}
When I execute this code, it give me the following errror :
Could not resolve argument $product_per_page of
"App\Controller\ProductController::listproduct()", maybe you forgot to
register the controller as a service or missed tagging it with the
"controller.service_arguments"?
So I have to copy this config files (config/services.yaml), and then paste it into config/services_dev.yaml, services_prod.yaml, services_test.yaml
And then it is working, but this is not suitable at all...
Because I have to do that for every config files... So i copy and paste in every environnement each time I update ANY configuration.
Of course, I have try to cache:clear and composer update, but nothing do.
I was expecting Symfony read the file as explain here but it is not working for me.
I have try to create another Symfony project, and now it is working in this one. But I want to understand what is wrong ? Is there a thing I have done which have result into a bug that cannot being correct even ater updating Symfony, even after having update composer, even after having clear the cache.
I can't believe there's nothing to do but to create a new Symfony project in which you copy the files from the old one.