请问怎么将客户端的消息转发给其他用户

$ws_worker->onMessage=function ($connection, $data)
{
     $connection->send("$data"+time());
};

$ws_worker->onMessage=function ($connection, $data)
{
    foreach($ws_worker->connections as $connection)
    {
        $connection->send("$data"+time());
    }
};

$ws_worker->onMessage=function ($connection, $data)use($ws_worker)
{
    foreach($ws_worker->connections as $connection)
    {
        $connection->send("$data"+time());
    }
};