Software Architecture

A service layer gives Laravel applications a clear home for workflows that are bigger than a controller action or model method.

The Repository pattern can clarify complex persistence logic, but it can also add noise when it only mirrors Eloquent methods.

The classic Facade pattern simplifies a subsystem, while Laravel facades provide static-style access to container services.

The Adapter pattern protects your PHP application from third-party APIs by translating external clients into internal contracts.

The Observer pattern helps Laravel applications react to important domain events without coupling workflows to every side effect.

Dependency injection lets Laravel services depend on contracts instead of concrete details, improving testing and flexibility.

The Single Responsibility Principle keeps Laravel services focused on one reason to change and makes workflows easier to test.

SOLID principles help PHP developers reduce coupling, clarify responsibilities, and design code that can evolve safely.

Composition lets PHP applications reuse behavior without creating inheritance trees that become hard to understand.

A practical introduction to object-oriented programming in PHP, focused on responsibilities, boundaries, and code that stays easy to change.

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