Day 69: Session Scaling — Redis-backed Persistent Sessions

In this , we dive deep into how hyperscale PHP systems handle user sessions without sticky sessions or disk bottlenecks using Redis-backed persistent session storage. Learn why traditional file-based PHP sessions fail at scale, how Redis enables centralized ultra-fast session management, and how high-performance CMS architectures use custom PHP session handlers, TTL-based expiration, persistent connections, and distributed Redis clusters to support millions of concurrent users. Build a real-world Redis session handler with PHP, Docker, Nginx, and Redis while exploring production-grade session scaling strategies used in modern distributed systems.

#PHP #Redis #SystemDesign #BackendEngineering #DistributedSystems #Scalability #DevOps #HighAvailability #SessionManagement #RoadRunnerPHP #Nginx #Docker #SoftwareArchitecture #WebScaling #HighPerformance

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