is_multi_author filter-hook . WP 3.2.0

Filters whether the site has more than one author with published posts.

Usage

add_filter( 'is_multi_author', 'filter_function_name_3812' );
function filter_function_name_3812( $is_multi_author ){
	// filter...

	return $is_multi_author;
}

$is_multi_author(true/false)

Whether $is_multi_author should evaluate as true.

Where the hook is called

return apply_filters( 'is_multi_author', (bool) $is_multi_author );

Where the hook is used (in WP core)