In this chapter, you learned everything you need to know about creating basic plugins and widgets. Now you know how to structure the PHP file, where to put your functions, and how to use hooks. You also learned about adding management pages, enabling plugins and widgets to have database access, and how to create shortcodes--a powerful tool that lets you make dynamic functionalities available to all WordPress users.
On top of all this, you learned how to work with REST API and perform basic communication with other WordPress websites. With your existing knowledge of PHP and HTML, you now have the tools to get started with writing every plugin and widget your heart may desire.
The next chapter will be all about community blogging--running multi-user blogs, and other aspects of turning your site into a serious online magazine.