我只是在这里看到问题。
我看到 datastring 变量是一个字符串，每个值都用，分隔在您的控制器上发布吧？
因此，它将是您控制器上的 $ _ POST ['data'] 。

I just see the issue here. I see that datastring variable is an string that each value is separated by , that you just use to post on your controller right? So it will be $_POST['data'] on your controller.

然后尝试在控制器上使用 explode（）：

Then try to use explode() like this on your controller:

$ parseddata = explode（'，'，$ _ POST ['data']）;

$parseddata = explode(',',$_POST['data']);

让我们继续您的代码：

   public function insertNewRole(){

    $parseddata = explode(',',$_POST['data']);

     $basic_data = array();

    $basic_data = array(
        'accs_trans_sec' => $parseddata[0], //The value should be 1
        'accs_acctng_sec' => $parseddata[1],//The value should be 0
        'accs_admin_sec' => $parseddata[2], //The value should be 1
        'accs_dashboard_sec' => $parseddata[3], //The value should be 0
        'accs_reports_sec' => $parseddata[4] //The value should be 1
    );
    $result = $this->RoleModel->saveRole($basic_data);

     if($result == true){
          echo ("Successfully inserted!");
     }else{
           echo ("Problem!");
      }
}

让我们看看您是否可以解决这个问题。

Let's see if you can get through this.

编辑：根据您之前的帖子，您的模型上有一个循环，我对其进行了修改，并且应该这样：

Based on your previous post, your model has a loop on it, I modify it and should like this:

public function saveRole($basic_data)
   {
    $this->db->insert('roles_global_access', $basic_data);

    return ($this->db->affected_rows() != 1) ? false : true;
   }