1// docs/update.asciidoc:96
2
3[source, php]
4----
5$params = [
6    'index' => 'test',
7    'id' => '1',
8    'body' => [
9        'script' => [
10            'source' => 'ctx._source.counter += params.count',
11            'lang' => 'painless',
12            'params' => [
13                'count' => 4,
14            ],
15        ],
16    ],
17];
18$response = $client->update($params);
19----
20