Remove or add additional information to WordPress user profiles

Sometimes the default WordPress user contact details on user profiles are not needed, this sweet little snippet will remove or add additional information to WordPress user profiles; ideal for memberships sites.

function my_user_contactmethods($user_contactmethods){
   // remove contact items
   unset($user_contactmethods['yim']);
   unset($user_contactmethods['aim']);
   unset($user_contactmethods['jabber']);
   // additional contact items
   $user_contactmethods['twitter'] = 'Twitter Username';
   $user_contactmethods['facebook'] = 'Facebook Username';
   return $user_contactmethods;
}

Once saved the user information can be output using the get_user_meta function, the example below is for logged in users…

if ( is_user_logged_in() ) {
// gets all user data
global $current_user;
// gets user meta by id
$user_info = get_user_meta($current_user->ID);
// outputs specific user meta
echo 'Twitter: ' . $user_info['twitter'][0];
echo 'Facebook: ' . $user_info['facebook'][0];
}

source: wp.tuts