I'd buy "PHP Fast and Easy" by Julie Meloni. This book is great for a newbie, and it'll get you started. It's designed around examples, so you learn code as you write some useful programs.
"Professional PHP Programming" from Wrox is a good book as well. It introduces variety aspects of PHP. Plus it gives 4 case studies at the end. It teaches you how to build working shopping cart, mailing agent, database browser, and forum.
Other than that Manual is a great resource. Go to www.linuxguruz.org, www.devshed.com, www.phpbuilder.com, www.thickbook.com, www.zend.com(my favorite). These sites have a lot of resources like code samples, articles, and tutorials.
Hope that helps,
Di