How to Use Redis Cache in CodeIgniter 4: A Complete Guide with Code Examples
Caching is a crucial technique for improving the performance of web applications by storing frequently accessed data in a fast-access storage layer. In CodeIgniter 4, the framework provides built-in support for multiple caching drivers, including Redis — an in-memory data structure store known for its speed and versatility. Redis can act as a cache, database, or message broker, making it ideal for high-traffic applications. This step-by-step tutorial covers Redis installation, CI4 configuration with both phpredis and Predis, practical controller examples, cache invalidation strategies, and performance best practices.
