backend-patterns

Separate PHP backend layers by enforcing clear boundaries between transport, business logic, and persistence. This structure isolates controllers from data access, improving maintainability and testability across Yii2, Laravel, and Symfony projects.

Database transaction handling requires explicit transaction scopes at service boundaries. By translating exceptions at these boundaries during PHP module refactoring, you ensure predictable state changes and enforce consistent error handling across data access layers.

This backend architecture pattern works with Laravel, Symfony, and Yii2 frameworks. It applies consistent design boundaries across these PHP platforms to improve testability, minimize architectural drift, and maintain reliable data access.

Map existing controllers to services and repositories by evaluating current dependencies and enforcing explicit transaction boundaries. This process isolates business logic from transport layers, yielding predictable state changes and reducing architectural drift.

Tangled PHP backend code causes fragile maintenance because unclear boundaries between controllers and persistence layers mix transport and business logic. This lack of separation leads to inconsistent transaction handling and fragile state changes during updates.