PHPDeveloper.org
- Categorized tutorials covering a variety of beginner, intermediate, and advanced topics.
- http://www.phpdeveloper.org/tutorials

Zend.com Tutorials
- Ranging from beginner to advanced.
- http://devzone.zend.com/public/view/tag/tutorials

LinuxGuruz
- Features tutorials and tips about installing PHP on Linux. Also includes several quick tips for performing very specific tasks.
- http://www.linuxguruz.com/z.php?id=3

PHP 5 For Absolute Beginners
- Zend, the makers of PHP, provide this tutorial repository with many different articles focusing on the foundations and new object model in PHP 5.
- http://devzone.zend.com/node/view/id/627

mtWeb PHP Articles
- Tutorials on PHP, PEAR, PHP with MySQL and PHP on Apache. Downloadable code is available. Visitors can comment on articles.
- http://www.mtdev.com/category/php/

Free PHP Guide
- Free site for php tutorials and guides to help learn php and web programming with mysql integration. Examples and lessons for beginners to become php experts.
- http://freephpguide.com

PHP 4 ALL
- A collection of tutorials addressing common but simple PHP tasks.
- http://php4all.org/nav-tutorials-seecat-true-cat-PHP.html

PHPro.org
- Tutorials and examples for beginners and advanced PHP developers.
- http://www.phpro.org

PHP Hacks
- PHPHacks provides PHP tutorials and examples on a variety of topics, from basic to advanced.
- http://www.phphacks.com

WebCheatSheet - PHP
- A collection of PHP articles and tutorials with working examples. Topics include PHP fundamentals, databases, forms, security, and user authentication.
- http://www.webcheatsheet.com/php/

PHP Sense
- PHP tutorials and sample code scripts.
- http://phpsense.com

Good PHP Tutorials
- Multiple tutorials for beginners or advanced developers.
- http://www.goodphptutorials.com

PHP Tutorial (chauy)
- PHP tutorial covering everything from the basics to advanced coding techniques.
- http://www.chauy.com/category/php-tutorials/

PHPeasystep
- PHP and MySQL tutorials, News, Downloads and Forums. Teach you step by step with easy simple php code.
- http://www.phpeasystep.com

Jelly & Custard
- A web development blog centering its focus on PHP and MySQL techniques to aid developers from all levels of experience.
- http://www.jellyandcustard.com

PHP Tricks & Skills
- PHP tutorials for beginners and advanced programmers.
- http://www.phptricks.com/

Phptutorials
- A free tutorials and advice on installing and using Apache, PHP and MySQL, primarily on Windows (WAMP).
- http://www.pulse-bs.co.uk/php/

Microcyb's CyberCMS PHP Tutorials
- Collection of PHP tutorials with code examples.
- http://www.microcyb.com/?m=c&c=36

Day Dream Graphics: PHP and MySQL Tutorials
- Offers over 60 tutorials on PHP and MySQL, easy-to-understand explaination, code releases and message board to offer assistance and help.
- http://www.daydreamgraphics.com/d/tutorial/view/2

DeveloperTutorials.com - PHP Tutorials
- A large collection of PHP tutorials by some of the top programmers in the industry.
- http://www.developertutorials.com/tutorials/php/

OpenSourceTutorials.com - PHP Tutorials
- PHP tutorials ranging from beginner to advanced written by geeks all over the world.
- http://www.opensourcetutorials.com/tutorials/Server-Side-Coding/PHP/

dev Articles - PHP
- PHP tutorials ranging from installing PHP on windows to creating bar charts.
- http://www.devarticles.com/c/b/PHP/

Developer.com PHP Articles and Tutorials
- Catering to novice and mid level webmaster/programmer; developer.com has tutorials on what you need to get started with PHP though how to validate e-mail addresses.
- http://www.developer.com/lang/php/

Sitepoint.com - PHP & MySQL Server Side Coding Tutorials
- Tutorials.
- http://www.sitepoint.com/subcat/98

Dev Shed
- A wide range of tutorials and articles with a growing PHP section.
- http://www.devshed.com/c/b/PHP

PHP Freaks
- This is a collection of tutorials that were written by the authors of phpfreaks.com. All tutorials in this section are maintained on their servers and they have a section for each tutorial that allows comments and ratings.
- http://www.phpfreaks.com/tutorials.php

JustPhukit.com
- A resource of PHP tutorials and articles for programmers and developers.
- http://www.justphukit.com/php/php-tutorials-1.php

O'Reilly Network: PHP DevCenter
- O'Reilly Network's source for PHP developer news and information.
- http://www.onlamp.com/php/

PHPbuddy
- PHP and MySQL articles, code snippets, and tutorials.
- http://www.phpbuddy.com/

PostgreSQL and PHP Tutorials
- This site has introductory tutorials on using PHP and PostgreSQL together.
- http://pgsql.designmagick.com/

TheScripts.com
- Tutorials on developing PHP scripts, and introduction to the language.
- http://www.thescripts.com/serversidescripting/php/

thesitewizard.com's PHP Tutorials
- Free tutorials and articles on PHP programming, installation and configuration.
- http://www.thesitewizard.com/php/

Web Developer's Virtual Library
- Tutorial collection includes a brief summary of the topic for each lesson.
- http://www.wdvl.com/Authoring/Languages/PHP/

DevCentral
- Provides tutorials for designing PHP scripts. Requires free registration to view articles.
- http://devcentral.iftech.com/articles/PHP/