// docs/reindex.asciidoc:802

[source, php]
----
$params = [
    'body' => [
        'max_docs' => 10,
        'source' => [
            'index' => 'twitter',
            'query' => [
                'function_score' => [
                    'random_score' => [
                    ],
                    'min_score' => 0.9,
                ],
            ],
        ],
        'dest' => [
            'index' => 'random_twitter',
        ],
    ],
];
$response = $client->reindex($params);
----