1// indices/put-mapping.asciidoc:519
2
3[source, php]
4----
5$params = [
6 'index' => 'my_index',
7 'body' => [
8 'mappings' => [
9 'properties' => [
10 'user_identifier' => [
11 'type' => 'keyword',
12 ],
13 ],
14 ],
15 ],
16];
17$response = $client->indices()->create($params);
18----
19