phpwsRSSFeeds is a module for the phpWebSite CMS that provides the ability to display syndicated news feeds in RSS format. It uses the PEAR XML_RSS Parser. Its features include the ability to show a list of headlines in a block or the full summaries on any page, and support for all existing RSS schemas.
phpx augments PHP syntax with powerful metaprogramming constructs such as mixins, class-level eval()/macros, pattern matching, annotations and interface delegation. It also implements a simple compiler for converting this extended syntax to standard PHP. The "compiled" code can be cached to disk, allowing features to be used without any runtime performance penalty.
picKLE is an image gallery system created in PHP. It generates thumbnails and resampled images on the fly and caches them, displays descriptions, and has an extremely clean layout. It is made to be very simple to install/configure, and you don't have to have admin access to the server to run it (unlike a lot of galleries).
pks-commands.php3 allows your Web server to search and add PGP/GPG keys from the public keys out there. It takes the TCP 11371 port connection and does it all on the web server. It is good in environments where the client machines are unable to get to arbitrary TCP ports (such as behind tightened firewalls).