Hi everyone here is a collection of some of the best tutorials I found online.
PHP 5 Power Programming
To download the book for free as a pdf file click on downloads under the More Information heading and a div will appear with the download link.
http://www.phptr.com/title/013147149X
Practical PHP Programming
This is an unpublished book on PHP. This book assumes no PHP programming skill at all - you will be taught from scratch in that respect. It appears to be quite comprehensive and can be navigated online in tutorial fashion, so it serves as an online php book or php tutorial.
http://www.hudzilla.org/phpbook/
Learning PHP 5 Sample Chapter
Chapter 8: Remembering Users with Cookies and Sessions
http://www.oreilly.com/catalog/learnphp5/index.html
Programming PHP Sample Chapter
Chapter 5: Arrays
http://www.oreilly.com/catalog/progphp/index.html
A Programmer's Introduction to PHP 4.0
Free PHP book online that can be downloaded in pdf format.
http://www.apress.com/book/bookDisplay.html?bID=3
PHP Session Management With Cookies
http://www.onlamp.com/pub/a/php/excerpt/webdbapps_8/
Book excerpt at O'Reilly.
Tizag.com's PHP Tutorial
The goal of this tutorial is to teach you the basics of PHP so that you can customize PHP scripts that you download, so that they better fit your needs; begin to understand the working model of PHP, so you may begin to design your own PHP projects; and give you a solid base in PHP, so as to make you more valuable in the eyes of future employers.
http://www.tizag.com/phpT/
PHP Tutorial
This site has a php tutorial that has short descriptions of the basics as well as working with files, sending email with php, and working with files and directories.
http://www.htmlite.com/PHPintro.php
Introductory Tutorial
Introduction to the basics at PHP.net. A short simple tutorial that only deals with dynamic webpage creation with PHP.
http://www.php.net/tut.php
W3Schools PHP Tutorial
Another fine tutorial from the folks at W3Schools including an introduction to PHP, installations, syntax, operators, conditionals, looping, functions, forms, cookies, inlcudes, date formats, and odbc database connections.
http://www.w3schools.com/php/
You can post your own resources for php. I'll add more when I find it.