1// docs/reindex.asciidoc:833
2
3[source, php]
4----
5$params = [
6    'body' => [
7        'source' => [
8            'index' => 'twitter',
9        ],
10        'dest' => [
11            'index' => 'new_twitter',
12            'version_type' => 'external',
13        ],
14        'script' => [
15            'source' => 'if (ctx._source.foo == \'bar\') {ctx._version++; ctx._source.remove(\'foo\')}',
16            'lang' => 'painless',
17        ],
18    ],
19];
20$response = $client->reindex($params);
21----
22