Function: Displays the name of the author who last edited the current post, if the author’s ID is available.

Function: Retrieves the requested data of the author of the current post.

Function: Outputs the field from the user’s DB object. Defaults to current post’s author.

Function: Retrieves either author’s link or author’s name.

Function: Displays either author’s link or author’s name.

Function: Retrieves the number of posts by the author of the current post.