How to print out a class file contained in a file

How to print out a class file that is contained in a file
The premise is that a file contains a file or class, it contains the file contains another class, so that layers of nesting, messy, this situation if you print out the class file it contains can clearly see the logical trajectory, do not know how to achieve this dream?
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I usually use phpcoverage to make this happen. Testers deploy this environment for all of the company's development machines to ensure 90% code coverage
The files used to execute those lines can be shown to be in this environment need xdebug XML and other things especially toss people

I don't know if anyone else has a better way?

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