如何只使用wokerman进行全员广播

写了个聊天室，只用到了workerman,
想在来消息时候进行全员广播，发现只有某一个客户端收的到信息

$worker->onMessage = function($conn,$data) use ($worker,$mongo){
    if(!$data)
    {
        return;
    }

    $json_arr = BaseJson::decode($data);

    foreach($worker->connections as $connection){
        switch($json_arr){
            case 'pong':
            case 'login':
//                $msg = $mongo->find('chatmsg', );
//                $json = ;
//                $connection->send(BaseJson::encode($json));
                return;
            case 'say':
                $content = $json_arr;
                $time = date('Y-m-d H:i:s');
                $json = ;
                $mongo->insert('chatmsg', $json);
                $connection->send(BaseJson::encode($json));
                return;
        }
    }
};

前台

 ws.onmessage = function(evt)
        {
            var obj = (JSON.parse(evt.data));
            if(obj.type=='statistics'){
                $('#people_num').html(obj.total_conn_person);
            }else if(obj.type=='showsay'){
                $('#ct').append(
                    '<div>"'+obj.content+'" "'+obj.time+'"</div>'
                );
                console.log(obj);
            }

        };