Pseudo-cron.php – use cron jobs just with PHP
Usually regular tasks like backup up the site’s database are run using cron jobs. With cron jobs, you can exactly plan when a certain command is to be executed. But most homepage owners can’t create cron jobs on their web server providers demand some extra money for that.
The only thing that’s certain to happen quite regularly on a web page are page requests. This is where pseudo-cron comes into play: With every page request it checks if any cron jobs should have been run since the previous request. If there are, they are run and logged.