Originally posted by gufmn
Check with your hosting company and see if the will let you run a cron job.
If you can't run cron jobs on your server, you could create a page that does what you want, and call it via cron from a remote location.
I use this strategy to automagically keep Netcraft looking at my uptimes. They have the script. I tell a browser to open it every 2 weeks at a certain time.