$roles->group()
Groups the items by a given field or callback. Returns a collection with an item for each group and a collection for each group.
$roles->group(string|\Closure $field, bool $i = true): Kirby\Cms\CollectionParameters
| Name | Type | Default | Description | 
|---|---|---|---|
| $field * | string|Closure | – | |
| $i | bool | true | Ignore upper/lowercase for group names | 
Return type
Exceptions
| Type | Description | 
|---|---|
| Kirby\Exception\Exception | 
Parent class
  Kirby\Cms\Roles    inherited from Kirby\Cms\Collection