Matthew Turland, in trying to solve a problem from work, needed a way to split out some code into two files to simplify and make it easier to use them individually.
The issue I ran into was due to all the generated PHP classes being housed in a single file. I had to process two WSDL files that had several identical user-defined types in common. As a result, I couldn't simply include the two PHP files generated from them because PHP doesn't allow you to define two classes with the same name.
He used the tokenizer extension to create a simple command-line script that did the splitting for him. This script could potentially be used for splitting out other kinds of files too - "unpacking" them from their combined state. You can download the latest version from Matthew's github account.