# $pricingRules->add()

> Adds a single object or an entire second collection to the current collection

- Source: `src/Cms/Collection.php#L94` <https://github.com/getkirby/kirby/blob/6.0.0-beta.1/src/Cms/Collection.php#L94>
- Inherited from Kirby, not part of the Merx API. See <https://getkirby.com/docs/reference>.

```php
$pricingRules->add(Collection<TValue>|array<TValue>|TValue $object): Kirby\Cms\Collection
```

## Parameters

| Name | Type | Default |
| --- | --- | --- |
| `$object` | `Collection<TValue>\|array<TValue>\|TValue` | `–` |

## Return type

`Kirby\Cms\Collection`

## Parent class

`Wagnerwagner\Merx\PricingRules` inherited from `Kirby\Cms\Collection`