A look behind the scenes of implementing deferred writes in the CodeIgniter 4 Settings package: how batching write operations improves performance, and the subtle database portability issue caused by NULL values in unique constraints.
While CodeIgniter 4 Settings includes a database-backed handler, I wanted a file-based option that’s lightweight, fast, and safe for production use. I’ll walk through the challenges of handling concurrency, file locking, and caching, and explain the design choices behind the new FileHandler.
Many people think Dead Letter Exchanges can handle only failures. In reality, they’re perfect for scheduling messages and delayed job processing. Let’s see how we can do it.
Deep dive into Unix signal handling in PHP applications with object-oriented design patterns, edge cases, and production-ready implementations.
A closer look at CVE-2025-45406. An invalid vulnerability claim against CodeIgniter4 that caused real-world disruption, and a call for responsible disclosure.