WordPress Plugin Fundamentals

Overview

WordPress plugin development using modern PHP 8.3+ practices, OOP architecture, Composer autoloading, and WordPress 6.7+ APIs. Build secure, maintainable plugins with proper hooks integration, database management, and settings pages.

Current Standards:

• WordPress: 6.7+ (Full Site Editing stable)
• PHP: 8.3 recommended (7.4 minimum)
• Architecture: OOP with PSR-4 autoloading
• Security: Three-layer model (sanitize, validate, escape)
• Testing: PHPUnit + WPCS compliance

Installation:

composer require --dev wp-coding-standards/wpcs:"^3.0"
composer require --dev phpunit/phpunit:"^9.6"