Final Project – Complete Professional WordPress Plugin

Final Project – Complete Professional WordPress Plugin — a practical guide to WordPress plugin final project with clear examples you can reuse in real projects.

WordPress Plugin Development Series (95/95). Prefer one article? Read the complete WordPress plugin development tutorial.

Short description

Build one complete plugin end-to-end — activation, admin settings, a main feature (CPT or custom table), REST or AJAX, security hardening, translations, and release-ready readme.

Steps

1. Define the feature MVP.
2. Implement secure admin + data layer.
3. Add REST/AJAX integration.
4. Finish i18n, docs, and release checklist.

Final project scope

1. Plugin bootstrap + activation/uninstall
2. Settings API page
3. CPT + meta box OR custom table CRUD
4. Shortcode or Gutenberg block
5. REST endpoint and/or AJAX form
6. Nonces, caps, sanitize/escape
7. i18n text domain
8. readme.txt + changelog
9. Basic PHPUnit or manual test checklist

Starter bootstrap

<?php
/**
 * Plugin Name: Acme Library
 * Version: 1.0.0
 * Text Domain: acme-library
 */

if (! defined('ABSPATH')) {
    exit;
}

define('ACME_LIBRARY_VERSION', '1.0.0');
require_once __DIR__ . '/includes/class-acme-library.php';
AcmeLibrary::instance(__FILE__);