PHP implements communication with go through JSON RPC (code attached)

This article brings you relevant knowledge about php and golang. It mainly introduces how php communicates with go through JSON RPC. Let's take a look at it together. I hope it will be helpful to friends in need.

php communicates with golang through JSON RPC

This method solves the computationally intensive needs of PHP processing.

I don’t know why, it cannot be accessed across servers. If you know, please leave a message.

go service

package main
import (
"fmt"
"log"
"net"
"net/rpc"
"net/rpc/jsonrpc"
)
 
type Calc struct{}
 
type Args struct {
A  float64 `json:"a"`
B  float64 `json:"b"`
Op string  `json:"op"`
}
 
type Reply struct {
Msg  string  `json:"msg"`
Data float64 `json:"data"`
}
 
 
// 第一个是参数是获取客户端传来的数据，第二个参数是返回的数据
 
func (c *Calc) Compute(args Args, reply *Reply) error {
var (
msg string = "ok"
)
 
switch args.Op {
case "+":
reply.Data = args.A + args.B
case "-":
reply.Data = args.A - args.B
case "*":
reply.Data = args.A * args.B
case "/":
if args.B == 0 {
msg = "in divide op, B can't be zero"
} else {
reply.Data = args.A / args.B
}
default:
msg = fmt.Sprintf("unsupported op:%s", args.Op)
}
reply.Msg = msg
 
if reply.Msg == "ok" {
return nil
}
return fmt.Errorf(msg)
}
 
 
// 启动server端
func main() {
err := rpc.Register(new(Calc))
 
if err != nil {
panic(err)
}
    
listener, err := net.Listen("tcp", "127.0.0.1:8181")
if err != nil {
panic(err)
}
 
for {
conn, err := listener.Accept()
 
if err != nil {
log.Println(err)
continue
}
 
go jsonrpc.ServeConn(conn)
}
}

php client

  public function Call($method, $params) {
        $this->conn = fsockopen('127.0.0.1', 8181, $errno, $errstr, 3);
        if (!$this->conn) {
            return false;
        }
        $err = fwrite($this->conn, json_encode(array(
                'method' => $method,
                'params' => array($params),
                'id'     => 12345,
            ))."\n");
        if ($err === false)
            return false;
        stream_set_timeout($this->conn, 0, 3000);
        $line = fgets($this->conn);
        if ($line === false) {
            return NULL;
        }
        return json_decode($line,true);
    }
 
 
    public function Test() {
        //访问结构体 Calc 下 Compute 方法
        $res = $this->Call("Calc.Compute",array('A'=>1,'B'=>2,'Op'=>'+'));
        return $res;
    }

Return result

{
    "id": 12345,
    "result": {
        "msg": "ok",
        "data": 3
    },
    "error": null
}

Recommended learning: "PHP Video Tutorial"

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