Resources to Learn PHP

I've noticed several threads cropping up in this forum lately with people asking for resources to learn PHP. Herewith is a list of resources which has been culled from various threads within this forum. Please feel free to add to this list.

Online Sources

PHP 101: PHP For the Absolute Beginner
http://devzone.zend.com/node/view/id/627

Server Side Coding : PHP & MySQL Tutorials
http://www.sitepoint.com/subcat/php-tutorials

PHP MySQL Tutorial
http://www.php-mysql-tutorial.com/

PHP Reference Manual
http://php.net/

Learn PHP Free
http://www.learnphpfree.com/

The Melonfire Community
http://www.melonfire.com/community/columns/trog/archives.php?page=2&category=PHP

CodeWalkers.com PHP tutorials
http://codewalkers.com/tutorials.php?c=5

Free2Code.com PHP tutorials
http://www.free2code.net/plugins/articles/read.php?id=259&page=1

Practical PHP Programming wiki
http://hudzilla.org/phpwiki/index.php?title=Main_Page

W3Schools - PHP Tutorial
http://www.w3schools.com/php/default.asp


Books

Build Your Own Database Driven Website Using PHP & MySQL
http://www.sitepoint.com/books/phpmysql1/

List of books, by Wrox Press. Click on the PHP/MySQL link.
http://www.wrox.com/WileyCDA/Section/id-105077.html