PSLib for PHP  

PSlib is a PHP library that offers an easy way of generating PostScript files.

Price: Free

   t0xirc  

t0xirc is a PHP class that enable your applications to interact with the popular IRC bot Eggdrop. You can use it to include a list of connected users on your web page, or even write a cli PHP script that runs in the background and give some intelligence to your idle bots.

Price: Free

   RTF Generator  

RTF Generator lets you create your own RTF files on web-servers, without any applications except PHP. Using special mark-up language which is based on HTML, you will be able to describe all necessary formatting for your data. You will have total control over the final look of the RTF document, as the Generator supports almost all features you can find in MS Word when creating a document.

Hosting Requirements: Unix, Windows
Price: $58

   BabelKit  

BabelKit is an interface to a universal multilingual code description lookup table. BabelKit takes all of the programming work out of maintaining multiple database code definition sets in multiple languages. The code administration and translation page lets you define new virtual code tables, new languages, enter all codes and their descriptions and then translate them into all languages of interest. Perl and PHP classes retrieve the code descriptions and automatically generate HTML code selection elements in the user's language. This makes internationalization and localization of web sites and database interfaces much easier.

Hosting Requirements: Unix/LInux, Windows; PHP
Database: SQL
Price: Free (LGPL

   GeoClass.php  

GeoClass for PHP provides classes to handle georeferenced data. It can search databases which contain latitude/longitude for a location to find locations within a surrounding area. Conversion between data formats and distance-calculations are provided.

Price: Free (LGPL