On his Oracle blog, Christopher Jones has posted a brief review of a book from Oracle spotlighting "PHP Web Programming", from author Michael McLaughlin.
Michael McLaughlin calls his new book PHP Web Programming an enabling book. I'd go further and call it a desert island book. It is the only thing you'd need to carry. It has much reference material strategically placed in the text, well thought out examples, and teaches how to build applications.
Christopher mentions some of the contents of the book - HTTP authentication, the POSIX file function,strings/objects, error handling, etc - it has it all. It especially has detailed information about using PHP with Oracle - PL/SQL, LOBs, REF CURSORS, and much more. It comes with a CD of code and applications, everything you'd need to get a PHP/Oracle installation up and running including the Oracle Database 10g Express Edition, Zend Core for Oracle's PHP stack, and the Apache web server.