wp_set_comment_status()
Sets the status of a comment.
WordPress File wp-includes/comment.php
wp_spam_comment()
Marks a comment as Spam.
wp_throttle_comment_flood()
Determines whether a comment should be blocked because of comment flood.
wp_transition_comment_status()
Calls hooks for when a comment status transition occurs.
wp_trash_comment()
Moves a comment to the Trash
wp_unspam_comment()
Removes a comment from the Spam.
wp_untrash_comment()
Removes a comment from the Trash
wp_update_comment()
Updates an existing comment in the database.
wp_update_comment_count()
Updates the comment count for post(s).
wp_update_comment_count_now()
Updates the comment count for the post.