獲取codeigniter中表的總列字段？

Question

如何從控制器函數中的結果數組中獲取總列字段？

我得到通過$fields = $query->list_fields()上model但如何使用等我從controller得到它。

控制器功能：

$result = $this->admin_model->national_certificate_user_search_print($start_date, $end_date); 
$total = sizeof($result); // getting total rows 

型號功能：

public function national_certificate_user_search_print($start_date, $end_date) { 
     $tablename = 'national_certificate'; 
     $query = $this->db->select('user_name,gurdiant_name,mother_name,prm_village_name,prm_post_office,prm_thana,prm_district,prsnt_address,prsnt_ward,prsnt_post_office,prsnt_thana,prsnt_district') 
         ->from($tablename) 
         ->where("uploaded_date BETWEEN '$start_date' AND '$end_date' ", NULL, FALSE) 
         ->get(); 
     $result = $query->result_array(); 
    // var_dump($query->num_fields()); 
     return $result; 
    } 
} 

Answer 1

試試這個，

控制器：

$result = $this->admin_model->national_certificate_user_search_print($start_date, $end_date); 
$total = $result->list_fields(); //this will work now with Object 

型號：

public function national_certificate_user_search_print($start_date, $end_date) { 
     $tablename = 'national_certificate'; 
     $query = $this->db->select('user_name,gurdiant_name,mother_name,prm_village_name,prm_post_office,prm_thana,prm_district,prsnt_address,prsnt_ward,prsnt_post_office,prsnt_thana,prsnt_district') 
         ->from($tablename) 
         ->where("uploaded_date BETWEEN '$start_date' AND '$end_date' ", NULL, FALSE) 
         ->get(); 
     return $query; 
    } 
} 

在這裏，你只需要從Model返回$query對象，然後你可以用它在Controller使list_fields()功能controller工作。