golang 端

package main

import (
    "fmt"
    "net"
    "net/rpc"
    "net/rpc/jsonrpc"
)

type Serve struct {

}

func (s *Serve) Echo(a *int, r *int) error {
    *r = 1
    return nil
}

func main() {
    tcpAddr, err := net.ResolveTCPAddr("tcp", ":9001");
    if err != nil {
        fmt.Println(err)
        return
    }

    l, err := net.ListenTCP("tcp", tcpAddr)
    if err != nil {
        fmt.Println(err)
        return
    }

    serve := &Serve{}
    rpc.Register(serve)
    for {
        conn, err := l.Accept()
        if err != nil {
            fmt.Println(err)
            continue
        }
        go jsonrpc.ServeConn(conn)
    }
}

php端

$conn = socket_create(AF_INET, SOCK_STREAM, SOL_TCP);
if (!$conn) {
    return FALSE;
}
socket_set_option($conn, SOL_SOCKET, SO_SNDTIMEO, array(
    "sec" => 0,
    "usec" => 50000
));
$result = socket_connect($conn, '127.0.0.1', 9001);
$s = time();
$w = ['id' => time(), 'params' => [1], 'method' => 'Serve.Echo'];

socket_write($conn, json_encode($w));
$r = socket_read($conn, 1024);
socket_close($conn);

echo $r;