如何编辑多个输入值

Question

我已经编辑了必需的文件并插入了新的输入值，如图所示，我试图更新为该文件仅更新所有输入值的最后一个文件值。 请告诉我如何为此编写代码。

视图页面

                       <?php foreach($todoInfo as $res){?>
                      <input type="text" class="form-control required" title="please enter Todo list Name" name="todo_list[]" id="todo_list" value="<?php echo $res->todo_list?>"><br>
                      <input type="hidden" class="form-control required"  name="todo_list_id" id="todo_list" value="<?php echo $res->todo_list_id?>"> 
                    <?php }?>
                    <button class="add_field_button btn-success" style="float: right;margin: -33px -115px;">Add More Fields</button><br>
                    </div>

                  </div>


                </div>
              </div>
                <!-- /.box-footer -->
              </form>

模型

 if(!empty($post)){


        foreach($post['todo_list'] as $value){


           $todo_list_id=$post['todo_list_id'];

           $tbl_user_details_array = array(

                      'A.todo_list'        =>   $value,

                      'A.modified_by'      =>   $userid,

                      'A.modified_date'    =>   date('Y-m-d H:i:s')

                      );

          $this->db->where("B.user_id", $user_id);

            $this->db->update('ms_todo_list as A JOIN tm_user_details as 

          B ON B.user_job_role= A.role_id',$tbl_user_details_array);


   }   

  return true;

  }
  else{

    return 0;
  }