Tarique Abbass

Sir I'm not exactly sure if this is the right place to ask this question. So apology if it isn't. Could you kindly describe briefly (or elaborately) what should be the deciding factor(s) to choose between XML and MySQL for data storage and retrieval. This is your huge fan from Pakistan. There's no better book on PHP than your's introductory text. I finished it completely in just one week. Now I'm going through its sequel (and yours JavaScript book in parallel), afterwards I'll go for PHP5 advanced and in the end I'd wish: Would that Mr Larry had written another book. Thank you sir!