存儲陣列的複選框值

Question

我有節數用戶

$listuser = mysql_query('SELECT id,firstname,lastname,approve FROM user'); 
echo '<form action="" method="post">'; 
echo '<table> 
      <tr><td>Name</td> 
       <td>AdminApprove</td> 
      </tr>'; 
while($row = mysql_fetch_assoc($listuser)) 
{ 
    $id = $row['id']; 
    $firstname = $row['firstname']; 
    $lastname = $row['lastname']; 
    echo '<tr> 
      <td><input type="hidden" name="id[]" value ='.$id.'></td> 
      <td>'.$firstname.''.$lastname.'</td> 
      <td><input type="checkbox" name="approve[]"></td> 
     </tr>'; 
} 
echo '<tr><td><input type="submit" name="submit" value="submit"></td></tr>'; 
echo '</table></form>'; 

表提交表單

$postedid = $_POST['id']; 
    $approve = isset($_POST['approve']) ? 1 : 0; 
    $approvestudent = 'UPDATE user SET approve = '.$approve.' WHERE id = '.$postedid.''; 
    $result_update = mysql_query($approvestudent); 

我想無論是批准的一個或多個在同一時間爲每個學生和後覈準的複選框值需要存儲到數據庫，或者使用0或1

Answer 1

$_POST['id']是數組不是字符串或整數

您可以使用PHP serialize()功能數組轉換成字符串

$postedid = $_POST['id']; 
    $approve = $_POST['approve']; 

應該

$postedid = serialize($_POST['id']); 
    $approve = serialize($_POST['approve']);