Domain wont console log sent message - node.js

Question

Hello I'm trying to create a chat application, I googled around and I got some issues on this step. Would appreciate some help...
Server.js
var express = require("express");
var app = express();
var http = require("http").createServer(app);
var io = require("socket.io")(http);
var users = [];
io.on("connection", function (socket) {
console.log("User connected", socket.id);
socket.on("user_connected", function (username) {
users[username] = socket.id;
io.emit("user_connected", username);
});
socket.on("send_message", function (data) {
var socketId = users[data];
io.to(socketId).emit("new_message", data);
console.log(data);
});
});
http.listen(3000, function () {
console.log("Server Started");
});
chat.php
function sendMessage(){
var message = document.getElementById("message").value;
io.emit("send_message", {
sender: sender,
message: message
});
return false;
}
io.on("new_message", function (data) {
console.log(data);
//var html = "";
//html += "<li>" + data.sender + " says: " + data.message + "</li>";
//document.getElementById("messages").innerHTML += html;
});
So my problem is happening in chat.php where my console.log(data) isn't shown, however the data is shown in server.js. Why is this currently not working?

Answer 1

From what you said earlier it's possible that you make it more complicated than it actually is. No need to change anything in chat.php, however instead of creating the variable socketId you could just emit the data immediately like this:
io.on("connection", function (socket) {
console.log("User connected", socket.id);
socket.on("user_connected", function (username) {
users[username] = socket.id;
io.emit("user_connected", username);
});
socket.on("send_message", function (data) {
io.emit("new_message", data);
});
});