Elastica\Client::updateDocuments PHP Method

    public function updateDocuments(array $docs)
    {
        if (empty($docs)) {
            throw new InvalidException('Array has to consist of at least one element');
        }
        $bulk = new Bulk($this);
        $bulk->addDocuments($docs, \Elastica\Bulk\Action::OP_TYPE_UPDATE);
        return $bulk->send();
    }

 /**
  * @param Document[] $documents
  * @param Closure    $errorHandler
  */
 protected function batchUpdate(array $documents, Closure $errorHandler)
 {
     $count = count($documents);
     if ($count === 0) {
         return;
     }
     if ($this->verbose) {
         array_map(function (Document $document) {
             $data = $document->getData();
             dump($data);
         }, $documents);
     }
     $this->validateFields($documents);
     try {
         $responseSet = $this->elastica->updateDocuments($documents);
         $failedSnsidList = [];
         $versionList = [];
         foreach ($responseSet as $response) {
             $this->parseResponse($response, $failedSnsidList, $versionList);
         }
         if ($failedSnsidList) {
             call_user_func($errorHandler, $failedSnsidList);
         }
         if (is_callable($this->versionHandler)) {
             call_user_func($this->versionHandler, $versionList);
         }
     } catch (\Exception $exception) {
         if (is_callable($this->errorHandler)) {
             call_user_func($this->errorHandler, $exception);
         }
         $this->elastica = $this->makeElastica();
         // Try to keep going on updating
     }
 }