怎么实现单一的查询，然后发送给所有人

while(true){

    $sql ="select 1+1";
    $count=$mysql->query($sql);
    Gateway::sendToAll(json_encode($count));
    sleep(1000);
}

$businessworker->onWorkerStart = function($businessworker) {
    // 只在0号businessworker设置定时器
    if ($businessworker->id === 0) {
        \Workerman\Lib\Timer::add(2, function() {
        \GatewayWorker\Lib\Gateway::sendToAll('1111');
    });
    }
}