Wordpress
Browse every technical article, tutorial, and guide organized by wordpress
WordPress Architecture & Theme Development: The Complete Fundamentals Guide
A comprehensive technical deep dive into how WordPress functions under the hood. This guide covers the essential bridge between WordPress Core architecture—including database schemas and the loading sequence—and the practical foundations of building custom themes using the Template Hierarchy, `functions.php`, and asset management.
Advanced WordPress Theme Logic: Queries, Customizer API & Internationalization
Moving beyond basic template hierarchy, this guide focuses on the dynamic capabilities of WordPress. We explore the extensibility of Child Themes, complex data retrieval via Advanced `WP_Query`, user-facing configuration through the Customizer API, and the rigorous standards required for Internationalization (i18n) and responsive media handling.
Modern WordPress Engineering: Block Themes (FSE), theme.json & Professional Standards
A definitive guide to the modern WordPress stack. This article dissects the Full Site Editing (FSE) paradigm, providing a comprehensive reference for `theme.json` architecture and Block Patterns. Furthermore, we establish the requirements for production-ready code through rigorous analysis of WPCS, Core Web Vitals optimization, and WCAG accessibility compliance.
WordPress Plugin Architecture: The Hooks System, Lifecycle & Shortcodes
The foundation of extending WordPress lies in its event-driven architecture. This guide provides a structural analysis of plugin development, detailing lifecycle management (activation/uninstall), the critical distinction between Actions and Filters, and the implementation of user-facing macros via the Shortcode API.
Extending WordPress Data & Admin: CPTs, Settings API, and Metadata
A comprehensive architectural guide to data modeling and backend administration. This article covers the essential APIs required to build complex applications on WordPress: defining custom data structures via Post Types and Taxonomies, managing configuration persistence through the Settings API, and handling entity relationships with the Meta and Transients subsystems.
WordPress Security Engineering: Validation, Sanitization & Access Control
Security is the primary responsibility of the backend engineer. This guide establishes the protocols for defensive programming in WordPress: enforcing trust boundaries with Nonces, managing user Capabilities, and rigorously applying the Input/Output pipeline (Validate, Sanitize, Escape) to prevent common vulnerabilities.
WordPress Database Engineering: The wpdb Class, Custom Tables & Performance
When standard Post Types fail to scale, direct database interaction is required. This technical reference covers the `$wpdb` abstraction layer for executing raw SQL, managing schema migrations and versioning via `dbDelta`, and strategies for indexing and query analysis to ensure high-performance data retrieval.
Modern WordPress APIs: REST, AJAX, and Asynchronous Architecture
The bridge to modern, headless architecture. This guide provides a comparative analysis of WordPress's asynchronous capabilities. We cover the legacy `admin-ajax.php` workflow for standard implementations and provide a definitive deep-dive into the REST API—including custom Controller architecture, schema validation, and authentication strategies for decoupled frontends.
Engineering Custom Blocks: React, block.json, and the WordPress Data Layer
The definitive guide to the modern WordPress frontend. This article bridges the gap between PHP and React, dissecting the Gutenberg architecture. We cover the full development lifecycle: scaffolding with `@wordpress/scripts`, defining metadata via `block.json`, implementing the Interactivity API, and managing complex application state using Redux-based stores in the WordPress Data Layer.
Enterprise WordPress Architecture: OOP, Composer & Modern Build Pipelines
Moving beyond procedural code is the hallmark of a senior WordPress engineer. This architectural guide covers the implementation of Object-Oriented Design (SOLID, MVC) and the integration of industry-standard tooling—Composer for PHP dependencies and npm for modern asset compilation—to create scalable, maintainable software.
WordPress Test Engineering: PHPUnit, Jest, E2E & Code Quality Pipelines
Quality assurance is what separates hobbyist code from enterprise software. This engineering guide details the full testing spectrum: setting up `WP_UnitTestCase` for backend logic, validating React components with Jest, conducting visual regression via Playwright, and enforcing strict coding standards with automated linting.