存储阵列的复选框值

Question

我有节数用户

$listuser = mysql_query('SELECT id,firstname,lastname,approve FROM user'); 
echo '<form action="" method="post">'; 
echo '<table> 
      <tr><td>Name</td> 
       <td>AdminApprove</td> 
      </tr>'; 
while($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>'; 

表提交表单

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

我想无论是批准的一个或多个在同一时间为每个学生和后核准的复选框值需要存储到数据库，或者使用0或1

Answer 1

$_POST['id']是数组不是字符串或整数

您可以使用PHP serialize()功能数组转换成字符串

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

应该

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