PHP Software Architecture
Reliable PHP architecture is about decisions that stay cheap to change: clear module boundaries, explicit data flows, and a domain model that survives new features. I design PHP systems, mostly CakePHP and Laravel, that teams extend for years without rewrites.
Principles I build on
Start from the domain, not the framework. Keep business rules in plain services and models, push infrastructure to the edges, and make dependencies point inward. The code stays testable and you can swap queues, storage, or APIs without touching core logic.
Where PHP performance actually comes from
Most latency lives in the database and the network, not the language. Right-sized indexes, N+1 elimination, cached read models, and async jobs beat micro-optimizations every time. PHP 8.4 with opcache and JIT is fast enough for the vast majority of production workloads.
Staying maintainable at scale
Event-driven integrations, well-defined contracts, and observability (structured logs, traces, metrics) turn a growing system into something a team can operate calmly. Architecture is a continuous practice, not a one-time diagram.
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