How to organize communication between php and node.js on a socket?

Question

PHP

php

$sock = socket_create(AF_INET, SOCK_DGRAM, SOL_UDP);
        
            $msg = "Пинг !";
            $len = strlen($msg);
        
            socket_sendto($sock, $msg, $len, 0, '127.0.0.1', 8080);
            socket_close($sock);

I'm trying to pull a line at 127.0.0.1:8080 and read it with a node:

var io = require('socket.io').listen(8080);
    io.set('log level', 1);
    io.set('heartbeats', true);
    io.set('heartbeat timeout', 30);
    io.set('heartbeat interval defaults',5);
    io.set('heartbeat interval defaults',5);




io.sockets.on('connection', function (socket) 
{
    
    socket.on('message', function (msg) 
    {
        
        console.log(msg);

    });
    
});

However, everything is quiet, please tell me how to exchange data correctly?

Answer 1

I'm not a node expert, but most likely your TCP port is listening, but sent to the UDP port.

Answer 2

You need to open a UDP socket on the node, instead of socket.io
UDP nodejs

var dgram = require("dgram");

var server = dgram.createSocket("udp4");

server.on("error", function (err) {
  console.log("server error:\n" + err.stack);
  server.close();
});

server.on("message", function (msg, rinfo) {
  console.log("server got: " + msg + " from " +
    rinfo.address + ":" + rinfo.port);
});

server.on("listening", function () {
  var address = server.address();
  console.log("server listening " +
      address.address + ":" + address.port);
});

server.bind(8080);
// server listening 0.0.0.0:8080

Answer 3

And what were the reasons in php to use udp? it is more logical to use tcp.

Answer 4

Slick slider is good for this purpose. Slider Syncing section, just swap the navigation in the HTML so it's on top.