WP Plugin Development - Build your own plugin!

Now let's finally start with the first plugin!

Let's add some admin menu which can be use for an settings page afterwords.

In our previously added menu page we are going to add some settings.

Store some settings into the WP options table

There are some things you need to know about including your custom CSS and JS files in Wordpress. I will show you with an example how to do that.

Some words about files and naming

Object oriented programming is really nice also in Wordpress plugins. I will give you an example of how to implement OOP in Wordpress.

Learn to connect to an external webpage or API and cache data using transients

Improve user experience using AJAX

Store your custom data into a separated database table

An example will show you how to store your data

Avoid including your plugin files from external applications

Is the current user allowed to perform this task? Check the current user's permissions and capabilities

Before you store data, input fields should be validated and filtered

Avoid XSS by escaping sequences

Was the current user really willing to delete a post? Avoid actions which could be clicked accidentally

All you need to know about the functions to translate a string in WP

POT files are used by your users to create a translation. I'll show you how to create this file using a PHP script.

The translation of your strings

Activate the translation files inside your plugin