Step-by-step PHP tutorials from the freaks at PHP Freaks.

Collection of PHP tutorials, beginner to advanced.

Providing a wide selection of PHP tutorials, from beginner to advanced.

Quality PHP tutorials from the folks at DevShed.

PHP tutorials, articles, tips & tricks.

An excellent source for coding guidelines, coding standards and coding best practices in PHP web development. Easy-to-read, comprehensive, fun and practical articles about PHP security, test-driven development, refactoring and a whole range of other topics that make you a better PHP programmer.

Where PHP professionals meet for articles, tutorials and a Yahoo discussion group.

PHPNerds features a wide variety of articles and tutorials related to PHP programming and design, tailored for both beginners and expert programmers.

PHP articles and tutorials, plus CSS, Linux and SQL info.

PHP code snippets and free scripts, tutorials and articles.

An excellent overview of PEAR written by Lukas Smith.