1// aggregations/bucket/terms-aggregation.asciidoc:358
2
3[source, php]
4----
5$params = [
6    'body' => [
7        'aggs' => [
8            'genres' => [
9                'terms' => [
10                    'field' => 'genre',
11                    'order' => [
12                        '_key' => 'asc',
13                    ],
14                ],
15            ],
16        ],
17    ],
18];
19$response = $client->search($params);
20----
21