get_resonate_user_count.php

/**
 * Get the total number of users by user role
 *
 * Usage:
 * 
 * if( function_exists( 'get_resonate_user_count' ) ) {
 *   if( $count = get_resonate_user_count( 'my-custom-user-role' ) ) {
 *     echo sprintf( __( 'My user rule has %s users.' ), $count );
 *   }
 * }
 * 
 * @param  string $role role name
 * @return int|false total number of users or false
 */
function get_resonate_user_count( $role ) {
	if( !$role ) {
		return false;
	}

	$query = new WP_User_Query( 
		array(
			'role' => $role
		) 
	);

	if( !$query->get_total() ) {
		return false;
	}

	return $query->get_total();
}