src/Leevel/Encryption/Encryption.php
protected function packData(string $value, int $expiry, string $iv): string
    {
        $data = [
            $this->normalizeExpiry($expiry),
            base64_encode($value),
            base64_encode($iv),
            $this->normalizeSign($value),
        ];

        return implode("\t", $data);
    }
protected function packData(string $value, int $expiry, string $iv): string
    {
        $data = [
            $this->normalizeExpiry($expiry),
            base64_encode($value),
            base64_encode($iv),
            $this->normalizeSign($value),
        ];

        return implode("\t", $data);
    }
打包数据.

@param string $value
@param int    $expiry
@param string $iv

@return string