I realized that I will likely reference many twitter people in posts and I think it is common courtesy to link to their profile so that you can go check them out if you want. However, I also want to be lazy and not have to type out their full twitter url all the time. Thus I decided that a shortcode would be nice and efficient.

With the following code,

[code type=”php”]
‘ . $content . ‘‘;
}
add_shortcode(‘twitter’, ‘twitter_shortcode’);
?>
[/code]

I can wrap a username in [twitter] [/twitter] and have it output the full link, like this You forgot a username for the Twitter shortcode

Edit

I have since realized that this is perfectly capable of working with identi.ca as well. For wordpress users of Identi.ca, copy/paste the following code into your functions.php file. It will work the exact same way regarding wrapping the user ID

[code type=”php”]
‘ . $content . ‘‘;
}
add_shortcode(‘identica’, ‘identica_shortcode’);
?>
[/code]

Like so: [identica]tw2113[/identica]