1// getting-started.asciidoc:578
2
3[source, php]
4----
5$params = [
6    'index' => 'bank',
7    'body' => [
8        'size' => 0,
9        'aggs' => [
10            'group_by_state' => [
11                'terms' => [
12                    'field' => 'state.keyword',
13                ],
14            ],
15        ],
16    ],
17];
18$response = $client->search($params);
19----
20