Symfony UI delivery

Host: Symfony 8.1.x (PHP ≥ 8.4) · Researched 2026-08
One-shot: /apply/symfony.full.md · Short: /symfony

Controllers (and API Platform state processors/providers if used) are UI adapters:

1. Validate/authorize
2. Map to Application DTO
3. Invoke Use Case
4. Present result

API Platform must not become a second Domain — keep processors thin.

Related

• Symfony adapter overview
• Core · Apply index