// docs/update.asciidoc:296

[source, php]
----
$params = [
    'index' => 'sessions',
    'id' => 'dh3sgudg8gsrgl',
    'body' => [
        'scripted_upsert' => true,
        'script' => [
            'id' => 'my_web_session_summariser',
            'params' => [
                'pageViewEvent' => [
                    'url' => 'foo.com/bar',
                    'response' => 404,
                    'time' => '2014-01-01 12:32',
                ],
            ],
        ],
        'upsert' => [
        ],
    ],
];
$response = $client->update($params);
----