Explain advanced CQRS architecture patterns in enterprise PHP systems.

CQRS separates read and write responsibilities into independent models, enabling scalability, optimized queries, event-driven processing, and domain isolation in enterprise systems.

Command Query Responsibility Segregation (CQRS) is an architectural pattern that separates systems into:

Traditional CRUD systems use the same model for reads and writes. This becomes problematic at scale because:

CQRS solves this by introducing distinct responsibilities.

Core concepts:

1.…