Symfony Knowledge Base

Quick reference for Symfony framework patterns, DDD integration, and PHP implementation guidelines for auditing and generating Symfony-based applications.

Core Principles

• Bundle System — Symfony's plugin mechanism. Third-party code is installed as bundles; application code lives outside bundles in src/.
• Symfony Flex — Automates bundle installation via recipes. Standard dirs: config/, src/, public/, var/, migrations/, tests/, templates/.
• Kernel — Entry point that boots the container, registers bundles, loads configuration. Must remain thin — no business logic.

Quick Checklists

DDD-Compatible Symfony Project