# ContentTypeGroupId Criterion

The [`ContentTypeGroupId` Search Criterion](https://doc.ibexa.co/en/latest/api/php_api/php_api_reference/classes/Ibexa-Contracts-Core-Repository-Values-Content-Query-Criterion-ContentTypeGroupId.html) searches for content based on the ID of its content type group.

## Arguments

- `value` - int(s) representing the content type group ID(s)

## Example

### PHP

```
$query->query = new Criterion\ContentTypeGroupId([1, 2]);
```

### REST API

**XML**

```
<Query>
    <Filter>
        <ContentTypeGroupIdCriterion>1</ContentTypeGroupIdCriterion>
    </Filter>
</Query>
```

**JSON**

```
"Query": {
    "Filter": {
        "ContentTypeGroupIdCriterion": [1, 2]
    }
}
```

## Use case

You can use the `ContentTypeGroupId` Criterion to query all Media content items (the default ID for the Media content type group is 3):

```
        $query->query = new Criterion\ContentTypeGroupId([3]);

        $results = $this->searchService->findContent($query);
        $media = [];
        foreach ($results->searchHits as $searchHit) {
            $media[] = $searchHit;
        }
    }
```