範例1

(要求Workerman版本>=3.3.0)

基於Worker的多進程分組推送系統

    use Workerman\Worker;
    use Workerman\Connection\TcpConnection;
    require_once __DIR__ . '/vendor/autoload.php';

    $channel_server = new Channel\Server('0.0.0.0', 2206);

    $worker = new Worker('websocket://0.0.0.0:1234');
    $worker->count = 8;
    // 全域群組到連線的映射陣列
    $group_con_map = array();
    $worker->onWorkerStart = function(){
        // Channel客戶端連線到Channel服務端
        Channel\Client::connect('127.0.0.1', 2206);

        // 監聽全域分組發送訊息事件
        Channel\Client::on('send_to_group', function($event_data){
            $group_id = $event_data['group_id'];
            $message = $event_data['message'];
            global $group_con_map;
            var_dump(array_keys($group_con_map));
            if (isset($group_con_map[$group_id])) {
                foreach ($group_con_map[$group_id] as $con) {
                    $con->send($message);
                }
            }
        });
    };
    $worker->onMessage = function(TcpConnection $con, $data){
        // 加入群組訊息{"cmd":"add_group", "group_id":"123"}
        // 或者 群發訊息{"cmd":"send_to_group", "group_id":"123", "message":"這個是訊息"}
        $data = json_decode($data, true);
        var_dump($data);
        $cmd = $data['cmd'];
        $group_id = $data['group_id'];
        switch($cmd) {
            // 連接加入群組
            case "add_group":
                global $group_con_map;
                // 將連線加入到對應的群組陣列裡
                $group_con_map[$group_id][$con->id] = $con;
                // 記錄這個連線加入了哪些群組，方便在onclose的時候清理group_con_map對應群組的資料
                $con->group_id = isset($con->group_id) ? $con->group_id : array();
                $con->group_id[$group_id] = $group_id;
                break;
            // 群發訊息給群組
            case "send_to_group":
                // Channel\Client給所有伺服器的所有進程廣播分組發送訊息事件
                Channel\Client::publish('send_to_group', array(
                    'group_id'=>$group_id,
                    'message'=>$data['message']
                ));
                break;
        }
    };
    // 這裡很重要，連線關閉時把連線從全域群組資料中刪除，避免內存洩漏
    $worker->onClose = function(TcpConnection $con){
        global $group_con_map;
        // 遍歷連線加入的所有群組，從group_con_map刪除對應的資料
        if (isset($con->group_id)) {
            foreach ($con->group_id as $group_id) {
                unset($group_con_map[$group_id][$con->id]);
                if (empty($group_con_map[$group_id])) {
                    unset($group_con_map[$group_id]);
                }
            }
        }
    };

    Worker::runAll();

測試 （假設都是本機127.0.0.1運行）

1、運行服務端

php start.php start
Workerman[del.php] start in DEBUG mode
----------------------- WORKERMAN -----------------------------
Workerman version:3.4.2          PHP version:7.1.3
------------------------ WORKERS -------------------------------
user          worker         listen                    processes status
liliang       ChannelServer  frame://0.0.0.0:2206       1         [OK] 
liliang       none           websocket://0.0.0.0:1234   12        [OK] 
----------------------------------------------------------------
Press Ctrl-C to quit. Start success.

2、客戶端連線服務端

打開chrome瀏覽器，按F12打開調試控制台，在Console一欄輸入(或者把下面程式碼放入到html頁面用js運行)

// 假設服務端ip為127.0.0.1，測試時請改成實際服務端ip
ws = new WebSocket('ws://127.0.0.1:1234');
ws.onmessage = function(data){console.log(data.data)};
ws.onopen = function() {
    ws.send('{"cmd":"add_group", "group_id":"123"}');
    ws.send('{"cmd":"send_to_group", "group_id":"123", "message":"這個是訊息"}');
};