1. Go to this page and download the library: Download hyperf/rpc-multiplex library. Choose the download type require.
2. Extract the ZIP file and open the index.php.
3. Add this code to the index.php.
<?php
require_once('vendor/autoload.php');
/* Start to develop here. Best regards https://php-download.com/ */
namespace App\RPC;
use App\JsonRpc\CalculatorServiceInterface;
use Hyperf\RpcMultiplex\Constant;
use Hyperf\RpcServer\Annotation\RpcService;
/**
* @RpcService(name="CalculatorService", server="rpc", protocol=Constant::PROTOCOL_DEFAULT)
*/
class CalculatorService implements CalculatorServiceInterface
{
}