MongoHybrid\Client::setKey PHP Метод

    public function setKey($collection, $key, $value)
    {
        $entry = $this->driver->findOne($collection, ['key' => $key]);
        if ($entry) {
            $entry['val'] = $value;
        } else {
            $entry = ['key' => $key, 'val' => $value];
        }
        return $this->driver->save($collection, $entry);
    }