I'm looking a few days for a soluation for the next problem.

I've got a apache webserver, that is fully functional with SubVersion.

I can checkout that repository and also commit.
But i'm currently developing a php site, with svn.
So i want to check 'on-the-fly' the changes that i made to the source.

So i've came up to the following.

In the crontab i set that every minute (!) a checkout has to be done, to a place in the document_root from my apache environment.

So every time i made a change i have to wait a minute before i can test it, so you can imagine that this might sometimes be frustrating.

So is it possible, that every time an external user commits, the subversion-server understands that, and checks out a local version on the server?

This could be done with SEC (Simple Event Correlator). It can continuously read a logfile and perform an action when a match was found.