20 Tutorials to Develop Plugin WordPress

I collect from pelfusion.com, you can visit pelfusion.com or see below

1. WP Tutorial: Your First WP Plugin

2. Writing a Plugin

3. How to Write a WordPress Plugin – Introduction

4. Create a Custom WordPress Plugin From Scratch

5. Anatomy of a WordPress Plugin

6. A Crash-Course in WordPress Plugin Development

7. WordPress Plugin Development Short Tutorial

8. WordPress Plugin Tutorial – Hello World

9. The Ultimate Guide to Building a WordPress Plugin

11. WorPress Plugin Development with PHP

12. Tips to Speed Up WordPress Plugin Development

13. Seven Reasons to Write a WordPress Plugin

14. WordPress Plugin Actions

15. WordPress Plugin Filters

16. Constructing a WordPress Plugin Admin Panel

17. Constructing a WordPress Plugin User’s Panel

18. Using JavaScript and CSS with your WordPress Plugin

19. Using AJAX with your WordPress Plugin

20. Releasing and Promoting Your WordPress Plugin