The Flash MX Charting Components Example is a free download application running with PHP and MySQL - this allows you to create dynamic Polls and Voting applications in Flash. Can be used for Quiz's, Multiple Choice, and other graphing needs - Includes Bar and Pie Chart examples. All area's of this are driven by a database so it's really easy to change the Questions/Answers around at any time as well as change the actual Polls without editing the Fla.
Yhteys is a contact form writen in php, that displays the form in flash. Your visitors can contact you via icq or mail. very easy to set up, no database needed, and includes a preloader. Written in finnish, an english version coming soon.
PhlashCal is an online diary system that can be used on any website that has PHP and MySQL capabilities. It adds, deletes and modifies entries on the fly, without having to refresh the page. Full source code included.
The FlashWriter Toolkit is a reimplementation of several functions from the original SWF FileFormatSDK. It provides PHP functions to build a SWF-coat around any JPEG so it can be loaded into Flash via loadMovie. This is not a PHP-module or add-on but simple PHP-functions you can include into your code.
Ming is an open-source (LGPL) library which allows you to create SWF ("Flash") format movies. Ming supports almost all of Flash 4's features, including: shapes, gradients, bitmaps (pngs and jpegs), morphs ("shape tweens"), text, buttons, actions, sprites ("movie clips"), streaming mp3, and color transforms--the only thing that's missing is sound events. Ming contains wrappers for PHP, Zope/Python, Perl, Ruby, and c++. Ming is not an acronym. Also, Ming contains a Flash 5 actionscript compiler and support for clip event actions.