Using WordPress ‘comment_author_IP()’ PHP function
Displays the IP address of the author of the current comment.
Comments
Using WordPress ‘comments_open()’ PHP function
Determines whether the current post is open for comments.
Using WordPress ‘do_feed_rss2()’ PHP function
Loads either the RSS2 comment feed or the RSS2 posts feed.
Using WordPress ‘get_comment_statuses()’ PHP function
Retrieves all of the WordPress supported comment statuses.