Free PHP Source Code
PHP Freaks Code Library
374 PHP Code Examples arranged into categories.
PHPClasses.org
PHP Classes Repository is a service created in 1999 as a means of distributing freely available programming classes of objects written in the Web scripting language named PHP. The goal of this service is to build a base of programming components ready to be used in Web applications written in PHP.
Hot Scripts PHP Section
There are a wide variety of php scripts here. Some are free and some are commercial, so you will have to hunt around to find the free ones, but there are plenty of free php scripts in many different categories here.
free-php.net
At free-php.net you will find FREE PHP SCRIPTS and php resources.
codewalkers.com
196 total PHP scripts.
PHP Categories
Scroll down to the bottom for an extensive, categorized listing of PHP source code.
Zend Code Gallery
The Code Gallery features snippets of PHP code that can be integrated into your PHP application.
Programmers Help code section
PHP source code section, here you fill find a mass of code which is categorised to make it easier to find.
PX : the PHP code exchange
There are many php scripts in this archive and as far as I can tell they are all free. There is also a neat feature that allows you to search for code that has been added or modified within a specified period of time.
Code and Article/Tutorial Categories
Click the ok button at the bottom of the page and get a bonanza of free php source code.
Sourcebank
Browsable source code directories including the PHP source code directories on this page.
PHP Source Code Area
18 Categories with 42 files to choose from.
DevScripts
PHP Scripts, Code Snippets and Code Samples
PHP Source Code
Lots of PHP Source Code.
PHP Example Scripts
PHP sample scripts.
Clock PHP Source Code
Client-side clock, based on computed time differential between browser and server.