Determining which PHP source files are not used

Question

I have a large web app, and I think there are a bunch of old files that are no longer being used, is there an app which can tell me what these files are?

Answer 1

There is also the Dead Code Detector (DCD). It finds functions that are never called, which may help to clean up even the files you keep in production.

Answer 2

You should be able to start with your web server logs. These will show you which files ARE being used. From there you should be able to track down a good number of the files those reference. Don't know of a good way to find out which aren't being used, only those that are.

Answer 3

I think you need to check out the project management tools available for php.

You can have a look at phpUnderControl (http://www.phpundercontrol.org/about.html) and CruiseControl (you can google it).

You can also use a tool (i.e and IDE) that will give a Code Coverage Report.