How Do You Approach Building Scalable PHP Applications?

Scalability is always a big consideration when building applications and while PHP often gets underestimated in this area, it’s still powering huge systems worldwide.

How do you approach scalability in your PHP projects?

Here are a few discussion prompts:

🏗 Architecture – Do you prefer microservices, modular monoliths, or something else when scaling PHP?

🧰 Frameworks/Tools – What PHP frameworks or tools have helped you scale (e.g., Laravel, Symfony, RoadRunner)?

💽 Databases & Caching – What strategies do you use to prevent bottlenecks (e.g., Redis, read replicas, horizontal scaling)?

🧪 Testing & Deployment – How do you maintain test coverage and deploy large PHP apps safely?

🔍 Lessons Learned – Any real-world challenges or “a-ha!” moments while scaling a PHP system?

Let’s swap tips, war stories, and best practices — whether you're running a startup or managing a massive legacy codebase.

👇 Drop your thoughts below! I’d love to learn from your experience.