Hi there. This is my first project like this, so bear with me, it might take a while before this is any good.
rdiff-backup-web is a web-based front end to rdiff-backup, a backup solution that uses rdiff to create incremental backups. The web portions of rdiff-backup-web are written in php, and there is a command line perl script included that is run as a cron job.
Hopefully, I should be uploading version 0.0.1 today. Then we'll see if anyone is interested.
Dave