2
I certainly have...
PHP\MySQL - Build Your Own Database Driven Website Using PHP & MySQL' by Kevin Yank, Sitepoint Publishers.
Brilliant book.
Second to that is 'PHP Fast & Easy Web Development 2nd Edition'by Julie Meloni.
Also useful is 'SAMS Teach Yourself SQL in 10 Minutes 2nd Edtion' for a quick reference.
I say all that, but I never really got to grips with it all and so rely on the XOOPS community who are generally smarter than I am to do it for me!
Good luck
Ted