Filters the comment author’s link for display.

Parameters

$comment_author_linkstring

The HTML-formatted comment author link.
Empty for an invalid URL.

$comment_authorstring

The comment author’s username.

$comment_idstring

The comment ID as a numeric string.

More Information

Both get_comment_author_url() and get_comment_author() rely on get_comment(), which falls back to the global comment variable if the $comment_ID argument is empty.

Source

return apply_filters( 'get_comment_author_link', $comment_author_link, $comment_author, $comment_id );

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