// query-dsl/query-string-query.asciidoc:306

[source, php]
----
$params = [
    'body' => [
        'query' => [
            'query_string' => [
                'fields' => [
                    'city.*',
                ],
                'query' => 'this AND that OR thus',
            ],
        ],
    ],
];
$response = $client->search($params);
----