Pfthb

I have edit required fileds and also insert new input values as shown figure.I am trying to update to this fileds update only last filed value for all input values.
please tell me how to write code for this on.

views page

 <?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>

Model

 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;