Contributed by
Alexandre Daubois
in
#57379

In Symfony 5.3, we introduced the #[When] attribute as a way to limit services
to specific config environments:

use Symfony\Component\DependencyInjection\Attribute\When;

// this class is only registered in the "dev" environment

#[When(env: 'dev')]
class SomeClass
{
// ...
}

This works well, but when dealing with numerous service implementations (e.g. for tests)
it can be cumbersome to define the #[When] attribute on each service. That's why
in Symfony 7.2, we're introducing the opposite attribute: #[WhenNot].
This new attribute allows you to exclude a service from certain environments:

use Symfony\Component\DependencyInjection\Attribute\WhenNot;

#[WhenNot(env: 'dev')]
class SomeClass
{
// ...
}

// add the attribute multiple times to exclude it from several environments

#[WhenNot(env: 'dev')]
#[WhenNot(env: 'test')]
class AnotherClass
{
// ...
}

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