1// aggregations/bucket/terms-aggregation.asciidoc:775
2
3[source, php]
4----
5$params = [
6    'body' => [
7        'aggs' => [
8            'actors' => [
9                'terms' => [
10                    'field' => 'actors',
11                    'size' => 10,
12                ],
13                'aggs' => [
14                    'costars' => [
15                        'terms' => [
16                            'field' => 'actors',
17                            'size' => 5,
18                        ],
19                    ],
20                ],
21            ],
22        ],
23    ],
24];
25$response = $client->search($params);
26----
27