How to enable autocomplete/syntax-highlight for PHP core functions in Eclipse?

Question

I searched a lot, checked many times the neccesary steps, but it still don\'t work.

My environment is :

1. Latest eclipse for PHP developer package

Answer 1

There are 3 .dll files: model.h2.db, model.lock.db and model.trace.db under workspace/.metadata/.plugins/org.eclipse.dltk.core.index.sql.h2

Remove these files and restart Eclipse.