Zend

Many developers are now working on your third version of a successful web application. There are 2 teams of developers, one team of 8 is in London, England and the other team of 12 is in Toronto, Canada.  

Once the connection to the repository is established you can then create an SVN Project and checkout your own files from the repository to make your own working copy. Then you can begin to work in your own environment and as code segments are completed you can commit them to the repository.  

PHP Development efforts generally start with a single developer or a small team with a similarly small task. Projects tend to grow in both complexity and size as one good idea gets expanded and enlarged into a web application.