In this course we’re going to look at how to implement our own custom WordPress meta boxes using WordPress best practices, coding standards, and APIs.
Specifically, we’re going to develop a plugin that adds a custom meta box with the following functionality:
- Attach an MP3 to any given post
- Specify a title for the MP3
- Make sure that we can upload only MP3 files
- Display a link to the MP3 file via the song title on the single post page