Wordpress Plugin Development 2025

Learn how to develop WordPress Plugin from scratch - basic to advanced

What you'll learn

How to properly structure a WordPress plugin for clarity, scalability, and reusability.

Using WordPress hooks (actions & filters) to extend core functionality.

Creating custom admin settings pages with input fields, sanitization, and validation.

Saving and retrieving settings using the Options API and register_setting().

Enqueueing CSS and JavaScript files correctly in both frontend and admin areas.

Building shortcodes to add your plugin features inside posts or pages.

Storing and retrieving data from the WordPress database using $wpdb and custom tables.

Handling secure form submissions with nonces, sanitization, and email notifications.

Creating responsive, user-friendly UI for your gallery, forms, and buttons.

Testing and debugging plugins to ensure they work across different sites and themes.

Requirements

HTML and CSS

Basic PHP

Description

Step into the world of advanced WordPress customization with WordPress Plugin Development 2025—a comprehensive, hands-on course designed to transform you from a WordPress user into a confident plugin developer.Whether you're a freelancer, agency developer, or tech-savvy entrepreneur, this course equips you with the skills to build powerful, lightweight, and fully functional plugins from scratch.Course Highlights:Plugin Architecture & File Structure:Begin with a solid foundation by learning how to properly organize plugin files, define headers, and initialize functions using WordPress best practices. You’ll discover how to build with scalability, security, and maintainability in mind.Mastering Hooks (Actions & Filters)Unlock the real power of WordPress with a deep dive into hooks. Learn how to extend WordPress functionality by tapping into actions and filters—the engine behind every plugin.Admin Pages & Plugin SettingsCreate custom admin pages with secure forms that store user-defined settings. You'll build dashboard panels that integrate seamlessly into the WordPress interface.Enqueuing Assets the Right WayLearn how to load CSS and JavaScript for both front-end and admin pages using WordPress standards—ensuring your plugins play nicely with any theme or plugin.Real-World Plugin ProjectsApply your skills by building three practical plugins from scratch:Gallery Plugin – Build a sleek, responsive gallery system that supports image uploads and dynamic rendering.Contact Form Plugin – Develop a custom contact form with spam protection and email notifications.WhatsApp CTA Plugin – Create a floating call-to-action button for direct WhatsApp chats, customizable from the dashboard.Security & SanitizationAvoid common vulnerabilities by learning how to validate, sanitize, and escape user inputs. Build plugins that are secure, stable, and production-ready.Performance Optimisation & Clean Code PracticesWrite lean, efficient plugins that follow WordPress coding standards and minimize bloat. Discover techniques for debugging, refactoring, and optimising for speed.By the end of the course, you won’t just understand how WordPress plugins work—you’ll be a plugin developer, capable of extending WordPress in powerful ways. And with three polished plugins in your portfolio, you’ll be ready to customize client sites, build premium tools, or launch your own products on the WordPress marketplace.

Overview

Section 1: Introduction

Lecture 1 Introduction

Section 2: Environment Set Up

Lecture 2 Environment Set Up 1

Lecture 3 Environment Set Up 2

Lecture 4 Environment Set Up 3

Section 3: Gallery Plugin Development for WordPress

Lecture 5 Plugin folder creation and index file

Lecture 6 Adding required class file

Lecture 7 Register Custom Post Type

Lecture 8 Adding Post Type Labels

Lecture 9 Add Post Meta Box

Lecture 10 Adding HTML design to meta box

Lecture 11 Adding JQuery event on button

Lecture 12 Adding Image Upload Event

Lecture 13 Fixing WP Media Pop Up

Lecture 14 Adding image functionality

Lecture 15 Accepting Image Data on Submit Event

Lecture 16 Saving Images to database

Lecture 17 Adding Gallery Shortcode

Lecture 18 Adding Light Gallery Dependency

Lecture 19 Adding Gallery Template

Section 4: Contact US Plugin Development

Lecture 20 Setting Up Plugin Layout 1

Lecture 0 Setting Up Plugin Layout 2

Lecture 21 Adding Description and Styles

Lecture 22 Adding ShortCode

Lecture 23 Alter Post Table

Lecture 24 Adding Contact Tabs

Lecture 25 Adding Tabs and Tabs JS

Lecture 26 Adding Textarea for fields shortcode

Lecture 27 Add Frontend Form

Lecture 28 Convert Fields to Shortcodes

Lecture 29 Saving Contact Body Fields

Lecture 30 Dynamic ShortCodes display

Lecture 31 Fix Textare Multiline issue

Lecture 32 Adding Mail Settings on Tab

Lecture 33 Mail Settings 2

Lecture 34 Mail Settings 3

Lecture 35 Mail Settings 4

Lecture 36 Frontend Form Submission

Lecture 37 Formatting mail data

Lecture 38 Set Up SMTP

Lecture 39 Contact Form Ajax and Form Formatter

Lecture 40 Conclusion

Section 5: WhatsApp CTA Plugin Development

Lecture 41 Setting Up WhatsApp Plugin CTA

Lecture 42 Adding Admin Menu

Lecture 43 Setting Up Dynamic Settings

Lecture 44 Apply Dynamic Settings

Section 6: Deploying to WordPress Server

Lecture 45 WordPress Plugin Deployment 1

Lecture 46 WordPress Plugin Deployment 2

WordPress developers who want to move beyond themes and start creating custom plugins.,Freelancers and agencies looking to build reusable tools for clients or submit plugins to the WordPress repository.,Intermediate PHP developers who are comfortable with WordPress basics and want to deepen their skills.,Tech-savvy entrepreneurs or product creators interested in launching their own WordPress plugins.,Web designers who want to add more dynamic, functional features without relying on third-party plugins.