WordPress Senior Knowledge Base — a curated collection of advanced articles, practical guides, and real-world engineering insights for professional WordPress developers.
Caching is one of the core concepts behind high-performance WordPress applications. This guide introduces the different caching layers—including Object Cache, Page Cache, OPcache, Browser Cache, CDN, and Transients—and explains how they work together to improve scalability, reduce server load, and optimize response times. Designed as a foundational knowledge base article for Senior WordPress Developers and Tech Leads.
A blueprint (template) for a PHP class, with properties, constructor, methods (instance + static), constants, and comments explaining each part.
Object-Oriented Programming (OOP) in PHP can feel tricky, especially when it’s packed with keywords, principles, and magic methods. Here’s a curated list of the most common PHP OOP questions, simplified with short examples.
