Aerospike\LDT\LList::exists PHP Method

    public function exists($value, &$res)
    {
        if (!is_string($value) && !is_int($value) && !is_array($value)) {
            $this->errorno = self::ERR_INPUT_PARAM;
            $this->error = self::MSG_TYPE_NOT_SUPPORTED;
            return $this->errorno;
        }
        $status = $this->client->apply($this->key, 'llist', 'exists', array($this->bin, $value), $res);
        $res = (bool) $res;
        $this->processStatusCode($status);
        return $this->errorno;
    }