Is PHP ready for XML?

I am beginning on how to work with xml, but i need some prelim help. let us say i have an XML file as follows: --------------- <Book> <Author>Jonathan Swift</Author> <Name>Gulliver's Travels</Name> </Book> <Book> <Author>Agatha Christie</Author> <Name>Murder on 57</Name> </Book> --------------- I want to know if PHP supports the following to do with the above file: - How to list the above information on a HTML page (I mean using PHP of course) - in tables.Which functions should I use, EXPAT functions or DOM functions? (Whats the difference?) - What if I need to search through a XML file? How would I go about doing it - recommended way? - What if I needed to add a new tag to all the BOOKS in the XML file. For instance, <Isbn>2390737-380973</Isbn> How would I do this for all the books in my XML file? I'd appreciate any help! Thanks! Erick. --- Outgoing mail is certified Virus Free. Checked by AVG anti-virus system (http://www.grisoft.com). Version: 6.0.230 / Virus Database: 111 - Release Date: 25-Jan-01