我的Linux环境是Centos6.4，lnmp一键安装的环境

1

pecl install swoole

2编译安装成功后，修改php.ini加入

extension=swoole.so

通过 php -m或 phpinfo()来查看是否成功加载了swoole，如果没有可能是 php.ini的路径不对，可以使用 php -i |grep php.ini来定位到 php.ini的绝对路径。

3创建Websocket服务器

vim ws_server.php

加入以下代码

//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);
    $ws->push($request->fd, "hello, welcome\n");
});

//监听WebSocket消息事件
$ws->on('message', function ($ws, $frame) {
    echo "Message: {$frame->data}\n";
    $ws->push($frame->fd, "server: {$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();

vim js.php

var wsServer = 'ws://'+location.host+':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);
};

4运行

php ws_server.php

5在页面访问 js.php打开调试工具如果出现下图则说明安装成功

如果想要将程序放到后台执行 使用该命令即可

nohup php ws_server.php &