What's the difference between the Build Path and the Include Path in Eclipse PDT?

Question

What's the difference between the Build Path and the Include Path in Eclipse PDT?

Answer 1

Build path is a set of paths, that IDE will use in order to parse the code, show errors, return auto completions methods, etc...

Include path is a path that similar to include path of php execution configuration.

If you have a code that should be executed, but you don't want to see it all in IDE, you can defined it in include path only.

Of cause, all the paths defined in build paths will be added to include path automatically during execution/debugging, in other words, build path is an include path.