DocBlox is described as 'Documentation Generation Application (DGA) for use with PHP applications. It is capable of transforming the comments in your source code into a full API reference document' and is a Documentation Generators in the Development category. There are six alternatives to DocBlox for a variety of platforms, including Windows, Linux, Mac, BSD and.NET Framework. The best alternative is Doxygen, which is both free and Open Source. Other great apps like DocBlox are Sandcastle (Free, Open Source), phpDocumentor 2 (Free, Open Source), DoxyS (Free, Open Source) and Natural Docs (Free).
Doxygen is a tool for generating documentation from annotated C++ sources, as well as other popular programming languages like C, Objective-C, C#, PHP, Java, Python, IDL (CORBA, Microsoft, and UNO/OpenOffice flavors), Fortran, VHDL, Tcl, and to some extent D.
Sandcastle produces accurate, MSDN style, comprehensive documentation by reflecting over the source assemblies and optionally integrating XML Documentation Comments. Sandcastle has the following key features: * Works with or without authored comments
DoxyS is a code documentation tool for C++/C. DoxyS strives to yield a very professional looking output, presenting the the code in a structured easy to navigate set of HTML pages. Easy to use: Just navigate to the root of your code directory and type doxys.
Natural Docs is an open-source documentation generator for multiple programming languages. You document your code in a natural syntax that reads like plain English. Natural Docs then scans your code and builds high-quality HTML documentation from it.