use Workerman\Worker;
use Workerman\Lib\Timer;
use Workerman\Connection\AsyncTcpConnection;

require_once __DIR__ . '/vendor/workerman/workerman/Autoloader.php';

$worker = new Worker();

$worker->onWorkerStart = 'connect';

function connect(){
    static $count = 0;
    // 2000個(gè)鏈接
    if ($count++ >= 2000) return;
    // 建立異步鏈接
    $con = new AsyncTcpConnection("ws://demo:8282/ws");

    $con->onConnect = function($con) {
        // 遞歸調(diào)用connect
        connect();
    };
    // 遠(yuǎn)程websocket服務(wù)器發(fā)來消息時(shí)
    $con->onMessage = function($con, $msg) {
        //echo "recv $msg\n";
    };
    // 當(dāng)連接遠(yuǎn)程websocket服務(wù)器的連接斷開時(shí)
    $con->onClose = function($con) {
        echo "con close\n";
    };
    // 連接上發(fā)生錯(cuò)誤時(shí)，一般是連接遠(yuǎn)程websocket服務(wù)器失敗錯(cuò)誤
    $con->onError = function($con, $code, $msg){
        echo "error: ".$code."--".$msg."\n";
    };
    // 當(dāng)前鏈接每10秒發(fā)個(gè)心跳包
    Timer::add(10, function()use($con){

        $ping = array(
            'type' => 'ping',
            'data' => array()
        );

        $con->send(json_encode($ping));
    });

    $con->connect();

    echo $count, " connections complete\n";
}

Worker::runAll();

這是壓力測試的，跑到1020就不動(dòng)了，也沒有提示

果然，另外一臺(tái)服務(wù)器也需要安裝event擴(kuò)展