How to do deployment for php application

Question

I am currently developing a php-application for a charity organization and I am now in the stage of defining the deployment practices.

Our application is using both Zend

Answer 1

Perhaps sometimes a simpler approach works best. If you keep stable releases simply tagged within the svn repo then you can just write a batch / bash script to download the newest revision whilst backing up to old with no user intervention - you can also run any scripts required in this way. Another alternative is writing a simple interface to this in PHP but it depends on how simple it needs to be.