I used swoole to build a websocket service. I have some questions about IP address access.

Install the official swoole demo code to build a websocket. server code: ws_server.php {code ...} client code: index.html?code ..htm I use the command to open the ws_server.php service terminal. The client file index.html is placed under the apache web root directory. I access the local file... install the official swoole demo code to build a websocket,
Server code: ws_server.php

// Create a websocket Server Object and listen to port 0.0.0.0: 9502 $ ws = new swoole_websocket_server ("0.0.0.0", 9502 ); // listen to the WebSocket connection opening event $ ws-> on ('open', function ($ ws, $ request) {var_dump ($ request-> fd, $ request-> get, $ request-> server); $ ws-> push ($ request-> fd, "hello, welcome \ n ");}); // listen to WebSocket message events $ ws-> on ('message', function ($ ws, $ frame) {echo "Message: {$ frame-> data} \ n "; $ ws-> push ($ frame-> fd, "server: {$ frame-> data }");}); // listen to the WebSocket connection close event $ ws-> on ('close', function ($ ws, $ fd) {echo "client-{$ fd} is closed \ n" ;}); $ ws-> start ();

Client code: index.html

《script》var wsServer = 'ws://127.0.0.1:9502';var websocket = new WebSocket(wsServer);websocket.onopen = function (evt) {    console.log("Connected to WebSocket server.");};websocket.onclose = function (evt) {    console.log("Disconnected");};websocket.onmessage = function (evt) {    console.log('Retrieved data from server: ' + evt.data);};websocket.onerror = function (evt, e) {    console.log('Error occured: ' + evt.data);};《script》

I started the ws_server.php service with a command, and put the client file index.html under the apache web root directory. I accessed localhost and saw the "Connected to WebSocket server." message on the console, proving that the access was successful.
However, if I change the ip address of the ws_server.php listener to another ip address (for example, 192.168.0.233: 9502133, then change the code related to index.html to wsServer = 'ws: // 192.168.0.233: 100 ';
Why is access unsuccessful?

Reply content:

Install the official swoole demo code to build a websocket,
Server code: ws_server.php

// Create a websocket Server Object and listen to port 0.0.0.0: 9502 $ ws = new swoole_websocket_server ("0.0.0.0", 9502 ); // listen to the WebSocket connection opening event $ ws-> on ('open', function ($ ws, $ request) {var_dump ($ request-> fd, $ request-> get, $ request-> server); $ ws-> push ($ request-> fd, "hello, welcome \ n ");}); // listen to WebSocket message events $ ws-> on ('message', function ($ ws, $ frame) {echo "Message: {$ frame-> data} \ n "; $ ws-> push ($ frame-> fd, "server: {$ frame-> data }");}); // listen to the WebSocket connection close event $ ws-> on ('close', function ($ ws, $ fd) {echo "client-{$ fd} is closed \ n" ;}); $ ws-> start ();

Client code: index.html

《script》var wsServer = 'ws://127.0.0.1:9502';var websocket = new WebSocket(wsServer);websocket.onopen = function (evt) {    console.log("Connected to WebSocket server.");};websocket.onclose = function (evt) {    console.log("Disconnected");};websocket.onmessage = function (evt) {    console.log('Retrieved data from server: ' + evt.data);};websocket.onerror = function (evt, e) {    console.log('Error occured: ' + evt.data);};《script》

I started the ws_server.php service with a command, and put the client file index.html under the apache web root directory. I accessed localhost and saw the "Connected to WebSocket server." message on the console, proving that the access was successful.
However, if I change the ip address of the ws_server.php listener to another ip address (for example, 192.168.0.233: 9502133, then change the code related to index.html to wsServer = 'ws: // 192.168.0.233: 100 ';
Why is access unsuccessful?

Set0.0.0.0Listen to connections from all address sources, so you can connect.
And set192.168.0.233Accept from192.168.0.233This host connection, your local host is not192.168.0.233The connection cannot be established.