Automatic INLINE Document Generation

Question

First off, I'm not asking about how to generate documentation FROM PHP source. That's easy enough with libraries like Doxygen or PHPDocumentor. What I'm looking for is a way to automatically generate inline phpdoc-based comment stubs for classes, methods, properties, etc. Are there any pre-existing libraries out there that can do this? I've done a bit of searching and have come up with nothing.

I'm only asking because I have an itch I wanna scratch by writing my own. I tend to spend HOURS at a time churning out code, saving documentation as a last step (I know, I should really do it AS I go). The problem is, even while realizing the importance of inline documentation, after 8 straight hours of coding and writing a dozen classes with dozens of methods and properties, it's a bit off-putting to have to screech to a halt and start writing the stuff.

Obviously, I can't create COMPLETE documentation automatically. Things like verbose descriptions of classes, properties and methods have to be hand-typed. But, using reflection, I can easily derive enough information to create comment stubs with fill-in-the-blank placeholders.

If anyone can assist me in the search for a solution like this, AWESOME. If not, I'll get to creating a new Github repository and contribute something useful to the community. :)