About the Book
PHP powers much of the WordPress ecosystem, but learning the language becomes much easier when the concepts are connected directly to the platform developers are already trying to build for.
PHP for WordPress Developers From the Root Up teaches PHP through practical WordPress development rather than treating it as an isolated programming language. Readers begin with variables, arrays, strings, conditions, loops, functions, and callbacks before moving into classes, objects, namespaces, type declarations, error handling, object-oriented programming, Composer, and modern PHP development practices.
Those concepts are then applied directly to WordPress hooks, settings, metadata, queries, REST APIs, HTTP requests, scheduled events, databases, dynamic blocks, plugin architecture, and theme development. Security topics include validation, sanitization, escaping, nonces, capability checks, prepared SQL statements, and safe file handling.
A running sample project demonstrates how PHP concepts come together inside a real WordPress plugin, helping readers move from understanding individual pieces of code to developing complete, maintainable solutions.