Categories
The five subjects this site publishes on, and what each one covers.
Internals
The engine: compilation, the Zend VM, memory layout, and the data structures behind the values you pass around.
Performance
Measurement: profiling, benchmark method, and optimization that arrives with a number attached.
Architecture
How an application is put together: boundaries, dependency injection, layering, and what a framework design costs later.
Runtime
Production behavior: PHP-FPM pools, worker processes, long-running runtimes, and where memory goes over a day.
Ecosystem
The tooling and standards around the language: Composer, static analysis, and the PSRs.