From now on, feed-i is a little bit more than a library. Since version 2.3, it comes with a basic client you can use through your terminal :
[code language="bash"] ./bin/feedio read http://php.net/feed.atom -c 1 [/code]
The instruction above will fetch php.net's feed and display its latest item. I used the "count" option to get only one, but this is not mandatory; without it, feed-io displays all the items included in the feed.
The command line interface will probably be the main subject of the next few releases. I'm thinking about features like JSON output or items ordering and if you have any suggestion, feel free to submit a new issue on Github.