WordPress has integrated a pretty good solution for generating scheduled tasks, such as publishing scheduled posts or activating the backup script. By default it’s executed when a visitor arrives on your website. The system checks if a scheduled task needs executing or not.

Have you ever wondered how do all those scheduled posts become published or your automated backups are done?

Well since I work as a web developer I decided to take a look in the core of it and find out just how it’s done.