wp_dropdown_users_args filter-hook . WP 4.4.0

Filters the query arguments for the list of users in the dropdown.

Usage

add_filter( 'wp_dropdown_users_args', 'filter_function_name_89', 10, 2 );
function filter_function_name_89( $query_args, $r ){
	// filter...

	return $query_args;
}

$query_args(array)

The query arguments for get_users().

$r(array)

The arguments passed to wp_dropdown_users() combined with the defaults.

Where the hook is called

$query_args = apply_filters( 'wp_dropdown_users_args', $query_args, $r );

Where the hook is used (in WP core)