將數據庫中的多個數據codeigniter的無線電值插入一行？

Question

我有一個測驗在線的項目，我想答案是這樣保存在數據庫

+-----------+-------------+---------+-------------+ 
| id_answer | id_student | id_kuis | answer | 
+-----------+-------------+---------+-------------+ 
|   1 | 99999874465 |  7 | A,B,D,A,C,B | 
+-----------+-------------+---------+-------------+ 

這個測驗是選擇題。那麼我怎樣才能插入這樣的答案數據。

這是我的看法

<?php echo form_open('c_kuis/addKuisAnswer',$atribut); ?> 
         <?php foreach($soalPG as $row){?> 
         <?php $jawab_array = array($row->pil_a,$row->pil_b,$row->pil_c,$row->pil_d);?> 
         <p><?=$row->no_soal?>.<?=$row->soal?></p> 
         <input type="hidden"name="id_soal<?=$row->id_soal_pg?>" value="<?=$row->id_soal_pg?>"></input> 
         <input type="radio" name="jawaban<?=$row->no_soal?>" value="A"> A. <?=$jawab_array[0]?></input><br> 
         <input type="radio" name="jawaban<?=$row->no_soal?>" value="B"> B. <?=$jawab_array[1]?></input><br> 
         <input type="radio" name="jawaban<?=$row->no_soal?>" value="C"> C. <?=$jawab_array[2]?></input><br> 
         <input type="radio" name="jawaban<?=$row->no_soal?>" value="D"> D. <?=$jawab_array[3]?></input><br> 
         <br><br> 
        <?php } ?> 
        <input type="hidden" name="kuis_id" value="<?php echo $kuisPG->id_ks;?>"></input> 
        <button class="btn btn-primary submit" id= "submit" type="submit">Submit</button> 
        <?php echo form_close(); ?> 
        </div> 

，這裏是我的控制器

public function addKuisAnswer(){ 
     $kuis_id = $_POST['kuis_id']; 
     $id_user = $this->session->userdata('data_user')->no_id; 
     $i=1; 
     while(isset($_POST['jawaban'.$i])) 
     { 
      $answer = $_POST['jawaban'.$i]; 
     } 
     $this->load->model('m_kuis'); 
     $this->m_kuis->answer_PG($id_user,$kuis_id,$answer); 
     echo " <script> 
         alert('answer saved!'); 
         history.go(-2); 
         </script>"; 

    } 

如何編輯我的控制器輸入數據上面的例子表？

Answer 1

我想，這可能幫助你

public function addKuisAnswer(){ 
    $kuis_id = $_POST['kuis_id']; 
    $id_user = $this->session->userdata('data_user')->no_id; 
    $i=1; 
    while(isset($_POST['jawaban'.$i])) 
    { 
     if($i == 1) 
     { 
      $answer = $_POST['jawaban'.$i]; 
      } 
     else{ 
     $answer. =','. $_POST['jawaban'.$i]; 
     } 
     $i++; 
    } 
    $this->load->model('m_kuis'); 
    $this->m_kuis->answer_PG($id_user,$kuis_id,$answer); 
    echo " <script> 
        alert('answer saved!'); 
        history.go(-2); 
        </script>"; 

} 

我們有另一種解決方案，使用explode和implode

while(isset($_POST['jawaban'.$i])) 
{ 
    $answer_array[] = $_POST['jawaban'.$i]; 

    $i++; 
} 
$answer = implode(',',$answer_array); 

Answer 2

由於您的問題只有一個答案，所以您的無線電對講機的名稱應該與所有4個選項相同，因此用戶只能選擇單個答案，並且您可以輕鬆地在發佈請求中獲取答案。 和其他代碼看起來是正確的。

Answer 3

試試這個代碼：

public function addKuisAnswer(){ 
    $kuis_id = $_POST['kuis_id']; 
    $id_user = $this->session->userdata('data_user')->no_id; 
    $i=1; 
    while(isset($_POST['jawaban'.$i])) 
    { 
     $answer = $_POST['jawaban'.$i]; 
    } 
    $this->load->model('m_kuis'); 

    // add this line to combine all the array values as a string 
    $answer = implode(",",$answer); 

    $this->m_kuis->answer_PG($id_user,$kuis_id,$answer); 
    echo " <script> 
        alert('answer saved!'); 
        history.go(-2); 
        </script>"; 

}