Basic Demonstration of Using OOP in a WordPress Plugin

oop-plugin-basic.php

/*
 * Plugin Header...
 * 
 * Note:  This particular block of code won't actually run because it doesn't have 
 * the details of the register_post_type and register_taxonomy functions filled in.
 */

class JR3_Books {

	/**
	 * Fires all hooks for this plugin
	 */
	static function setup() {
		add_action( 'init', array( __CLASS__, 'register_books_cpt' ) );
		add_action( 'init', array( __CLASS__, 'register_genres_taxonomy' ) );
	}
	
	
	/**
	 * Basic setup of a Custom Post Type
	 * @see http://codex.wordpress.org/Function_Reference/register_post_type
	 */
	static function register_books_cpt() {
		register_post_type( 'jr3_books', array(...) );
	}


	/**
	 * Register Custom Taxonomy for this Custom Post Type
	 * @see http://codex.wordpress.org/Function_Reference/register_taxonomy
	 */
	static function register_genres_taxonomy() {
		register_taxonomy( 'jr3_genres', 'jr3_books', array(...) );
	}
	
}

//Load the plugin by firing the setup() method.
add_action( 'plugins_loaded', array( 'JR3_Books', 'setup' ) );