The simplest and most straightforward way to get the post author ID outside the loop, if you know the post ID, is to use the WordPress core function get_post_field(). $post_author_id = get_post_field( ‘post_author’, $post_id ); If you do not yet know the post ID of the page you are on, then since WP 3.1 the … Read more
The easiest way would be using get_post_field(): $post_author_id = get_post_field( ‘post_author’, $post_id ); For more details on this issue: have a look at this StackOverflow answer.
I would use transients to do this: create a user-online-update function that you hook on init; it would look something like this: // get the user activity the list $logged_in_users = get_transient(‘online_status’); // get current user ID $user = wp_get_current_user(); // check if the current user needs to update his online status; // he does … Read more
I would say that for most purposes @author is unwanted noise. The user of your API shouldn’t – and probably doesn’t – care, or want to know, who wrote which parts. And, as you have already stated, SVN already holds this information in a much more authoritative way than the code can. So if I was one … Read more