WordPress Version: 5.1
/**
* Update the network-wide user count.
*
* @since 3.7.0
* @since 4.8.0 The `$network_id` parameter has been added.
*
* @global wpdb $wpdb WordPress database abstraction object.
*
* @param int|null $network_id ID of the network. Default is the current network.
*/
function wp_update_network_user_counts($network_id = null)
{
global $wpdb;
$count = $wpdb->get_var("SELECT COUNT(ID) as c FROM {$wpdb->users} WHERE spam = '0' AND deleted = '0'");
update_network_option($network_id, 'user_count', $count);
}