search for depricated code

[Pileofrogs]

I'm an admin with a PHP server used by a handful of people. I've had register_globals, register_long_arrays and a few other depricated features turned on because I didn't want to ruffle my users' feathers. Well, now the time has come to turn those features off.

I've volunteered to help my users get their PHP code ready for this change, but it's looking like a big project.

Is there any kind of tool that will tell me if a php script is relying on these depricated features? Any other advice on transitioning from register_globals = On to register_globals = Off etc...?

Thanks
-Pileofrogs