nanoFTPd [1] is an ftp daemon written in php. As of version 4.2.0, php supports the command-line interface (stable since 4.3.0), which nanoFTPd relies on. nanoFTPd is modular, so it\’s easy to add custom modules and other stuff, like different database interfaces (currently supports mysql and postgresql). nanoFTPd\’s other advantage is, that it\’s not so robust as other ftp daemons written in a different programming language.
[1] http://nanoftpd.sourceforge.net
