swoole推送信息一對一，一對多

服務端

$ws->on('message', function ($ws, $frame) {
    //echo "接收到的信息: {$frame->data}\n";
    //$ws->push($frame->fd, "server: {$frame->data}");
    //echo "服務器已接收:【".$frame->fd."】";
    //$ws->push($frame->fd, json_encode(['hello','world'.$frame->data]));


    // 1.客戶端發送過來的信息
    $content = $frame->data;
    echo "服務器接收到信息：".$content."\n";
    // 2.講消息發送個全部客戶端
    $arr = json_decode($content);
    $id = $arr[0];
    $str= $arr[1];

    //一對一推送
    $ws->push($id,$str);
    // 一對多，推送
    /*foreach ($ws->connections as $fd){
        //echo "FD：".$fd."\n";
        $arr = json_decode($content);
        $id = $arr[0];
        $str= $arr[1];
        $ws->push($fd,$str);
    }*/
});