Plugin README and header information
When developing a plugin, there are two places where ‘meta’ information about the plugin needs to be placed. Each has specific requirements and is used in different places.
This document will guide you through how to create both.
The WordPress Transients API
Transients are data that is held on the options table of the database and is meant for temporary storage. Although Transients can expire, they don’t have to.
Find out everything you need to know about how to use them here.