2020-05-02 / 4399阅 / 悠然
Determines whether the query is for an existing author archive page.
If the $author parameter is specified, this function will additionally check if the query is for> Conditional Tags article in the Theme Developer Handbook.
(int|string|int[]|string[])
(Optional)
User ID, nickname, nicename, or array of such to check against.
Default value: ''
(bool)