php这种application/octet-stream 怎么样才能一行一行输出给前端

    header('Content-Type:application/octet-stream');
        header('Access-Control-Allow-Origin:*');
        header('Access-Control-Allow-Headers:content-type,Authorization');
        header('Access-Control-Allow-Methods:*');
        header('Connection: keep-alive');
        if (ob_get_level() == 0){
            ob_start();
        }
        for ($i = 0; $i <100; $i++) {
            $data = ["id"=>$i,"content"=>"测试一行一行输出给前端啊"];
            $jsonStr = json_encode($data,JSON_UNESCAPED_UNICODE);
            echo $i==0?$jsonStr:"\n".$jsonStr;
            ob_flush();
            flush();
//            sleep(1);
        }