Scripted document updateedit

Sometimes you need to perform a scripted update, such as incrementing a counter or appending a new value to an array. To perform a scripted update, you need to provide a script and (usually) a set of parameters:

$params = [
    'index' => 'my_index',
    'type' => 'my_type',
    'id' => 'my_id',
    'body' => [
        'script' => 'ctx._source.counter += count',
        'params' => [
            'count' => 4
        ]
    ]
];

$response = $client->update($params);