src/ElasticSearch/Transport/Memcached.php
public function index($document, $id=false, array $options = array()) {
        if ($id === false)
            throw new \ElasticSearch\Exception("Memcached transport requires id when indexing");

        $document = json_encode($document);
        $url = $this->buildUrl(array($this->type, $id));
        $response = $this->conn->set($url, $document);
        return array(
            'ok' => $response
        );
    }
public function index($document, $id=false, array $options = array()) {
        if ($id === false)
            throw new \ElasticSearch\Exception("Memcached transport requires id when indexing");

        $document = json_encode($document);
        $url = $this->buildUrl(array($this->type, $id));
        $response = $this->conn->set($url, $document);
        return array(
            'ok' => $response
        );
    }
Index a new document or update it if existing

@return array
@param array $document
@param mixed $id Optional
@param array $options
@throws \ElasticSearch\Exception