我需要连接一个RPC地址进行调用方法 如何像REDIS一样只连接1次

    $rpc = new Goridge\RPC\RPC(Goridge\Relay::create('tcp://0.0.0.0:1234'));
    $a['addredss'] = "trrrrrrrrrrrrrrrrjdjd";
    $a['money'] = "0.123"; 
    $rpc->call("App.Hi",json_encode($a));

$rpc = new Goridge\RPC\RPC(Goridge\Relay::create('tcp://0.0.0.0:1234'));

$rpc->call("App.Hi",json_encode($a));