Hi all. I'm looking for an open source appointment scheduling script (PHP) similar to http://www.aplusappointment.com/ and http://www.schedule-organizer.de/en/. Any suggestions? Thanks! :D

Well supercali is an event calendar but the code is very easy to work with, you can actually use it as a scheduling software. If you are more concerned about not overlapping events you would just need to come up with a script that prevents that.

Take a look at it: http://supercali.inforest.com/

I use it in some of my applications.

Sorry, what I meant to say was base64 for example.. but that's not "secure" by any stretch of the imagination.