comment_author( int|WP_Comment $comment_id = 0 )

68function comment_author( $comment_id = 0 ) {69	$comment = get_comment( $comment_id );70 71	$comment_author = get_comment_author( $comment );72 73	/**74	 * Filters the comment author's name for display.75	 *76	 * @since 1.2.077	 * @since 4.1.0 The `$comment_id` parameter was added.78	 *79	 * @param string $comment_author The comment author's username.80	 * @param string $comment_id     The comment ID as a numeric string.81	 */82	echo apply_filters( 'comment_author', $comment_author, $comment->comment_ID );83}