第一步。下载swoole
- wget https://pecl.php.net/get/swoole-1.8.11.tgz
- tar zxvf swoole-1.8.11.tgz
- cd swoole-1.8.11
- phpize
- ./configure
- make && make install
第二步,配置PHP.ini
- vi /etc/php.ini
- 添加以下内容
- extension=swoole.so
重启nginx/apache
在web根目录
- vi server.php
- <?php
- //创建websocket服务器对象,监听0.0.0.0:9502端口
- $ws = new swoole_websocket_server("0.0.0.0", 9502);
- //监听WebSocket连接打开事件
- $ws->on('open', function ($ws, $request) {
- var_dump($request->fd, $request->get, $request->server);
- $GLOBALS['fd'][] = $request->fd;
- //$ws->push($request->fd, "hello, welcome\n");
- });
- //监听WebSocket消息事件
- $ws->on('message', function ($ws, $frame) {
- echo "Message: {$frame->data}\n";
- foreach($GLOBALS['fd'] as $key => $val){
- $ws->push($val,$frame->data);
- }
- //$ws->push($frame->fd, "{$frame->data}");
- });
- //监听WebSocket连接关闭事件
- $ws->on('close', function ($ws, $fd) {
- echo "client-{$fd} is closed\n";
- });
- $ws->start();
启动服务
- php server.php
本地新建文件
- <!DOCTYPE html>
- <html lang="en">
- <head>
- <meta charset="UTF-8">
- <title></title>
- </head>
- <body>
- <input type="text" id="color">
- <button onclick="doSend()">变色</button>
- </body>
- </html>
- <script>
- var wsServer = 'ws://192.168.1.212:9502'; //ip地址为服务器IP地址
- 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) {
- //alert(evt.data)
- document.body.style.backgroundColor="#"+evt.data;
- console.log('Retrieved data from server: ' + evt.data);
- };
- websocket.onerror = function (evt, e) {
- console.log('Error occured: ' + evt.data);
- };
- function doSend() {
- var color = document.getElementById("color").value;
- websocket.send(color);
- }
- </script>
测试:
可以多开几个页面,在任意一个页面输入6位颜色编码后,所有页面背景颜色均会改变。