Newsadmin is a simple news administration system that features news editing and several separate news editor/ administration accounts. News articles can have a news image that can be uploaded with the article (using news editing form). There is a news archive page for past articles. Long articles can optionally be cut on main view and read using separate readarticle "read more" page. This script can quite easily be customized to different needs.
YaFM is a Web-based file manager. It allows you to upload, download, view, edit, copy, move/rename, and change permissions and owner group of a single file or a group of files which reside on a Unix filesystem local to the script. It is meant to be run as a (suexec-ed) CGI script.
PHP Kickstarter is an extremely powerful, flexible, and user-friendly kickstart solution. The administration is Web-based, and with macro and include file substitution capabilities, it is ready for enterprise-class jobs. Also, it is all based on flat files (no databases), and thus has no dependencies beyond PHP, so it is easy to install.
Oliver (formerly "WebShare") is a PHP-based FTP front-end, released under the GPL. It allows people to access files normally only available via FTP, effectively providing users with a complete Web-based file management system that, if SSL is enabled on the Web server, uses a single secure connection. This makes it far simpler to use through a firewall. At present, Oliver has only been tested with ProFTPd and PureFTPd but it should work with many others.
doCommerce is an e-commerce platform, which uses PHP and MySQL. It is essentially osCommerce in Portuguese; the official releases of osCommerce are done for English, German, and Spanish. This package provides a Portuguese translation of osCommerce, and adds many of the contributions, modules, fixes, and patches that make it even more useful for the Portuguese online market.
disknavigator is a PHP class that is meant to browse a given directory on a server's file system. It can also perform several types of manipulations of the files within the directory. It can change permissions, retrieve the total size of all the files, create new files or sub-directories, and remove files or directories.
Dokeos is a Web application to manage learning and collaboration activities. It allows the teacher/trainer to create content, to structure activities along a sequenced path, to interact with students/trainees, and to follow their progress. It has been translated into 31 languages, and is used by more than 3500 organizations worldwide.