Disable author pages in WordPress

gistfile1.txt

//Check if it is author page
function remove_author_pages_page() {
	if ( is_author() ) {
  //trigger 404 page
		global $wp_query;
		$wp_query->set_404();
		status_header( 404 );
	}
}

//redirect to homepage
function remove_author_pages_link( $content ) {
	return get_option( 'home' );
}

//when
add_action( 'template_redirect', 'remove_author_pages_page' );
//do
add_filter( 'author_link', 'remove_author_pages_link' );