Sort user by metadata value

[ziofix]

It would be nice to sort users by metadata value, the way it works for posts. For instance:

$users = get_users(array(
  'orderby'  => 'meta_value_num', 
  'order'    => 'DESC', 
  'meta_key' => 'score', 
));

Therefore it needs to add the lines below at line 436 of file wp-includes/user.php:

} elseif( (!empty($qv['meta_key'])) && ( 'meta_value' == $qv['orderby']) ) {
  $orderby = "$wpdb->usermeta.meta_value";
} elseif( (!empty($qv['meta_key'])) && ( 'meta_value_num' == $qv['orderby']) ) {
  $orderby = "$wpdb->usermeta.meta_value+0";

[SergeyBiryukov]

Actual patch

[c3mdigital]

Duplicate of #21581.