表单修改数据

<td><a href="pages/xiugai.php?id=<?php echo $row["id"]?>">修改</a></td>

<?php
header('Content-Type:text/html;charset=utf-8');
include_once("../conn/conn.php");
 $id=$_GET["id"];
 
 $sql="SELECT * from user where id=$id";
 $r=mysqli_query($link,$sql);
 while($row=mysqli_fetch_array($r)){
?>
<input type="hidden"  value="<?php echo $row['id'] ?>" id="id"></br>
 <input type="text" id="name"  value="<?php echo $row['name'] ?>"></br>
 <input type="text" id="password" value="<?php echo $row['password'] ?>"></br>
 <input type="text" id="sex" value="<?php echo $row['sex'] ?>"></br>
 <input type="text" id="college" value="<?php echo $row['college'] ?>"></br>
 <input type="text" id="class" value="<?php echo $row['class'] ?>"></br>
 <input type="text" id="tel" value="<?php echo $row['tel'] ?>"></br>
 <input  type="submit" id="queding" value="确定"  style="
 <script src="../js/jquery.js"></script>
 <script type="text/javascript" src="../js/jquery-1.11.3.min.js"></script>
 <script type='text/javascript' src='../js/jquery-1.4.4.min.js'></script>
  <script type="text/javascript">
 $(document).ready(function(){
   $("#queding").click(function(){
 var id=$("#id").val();
    var name=$("#name").val();
    var password=$("#password").val();
    var sex=$("#sex").val();
    var college=$("#college").val();
    var ban=$("#class").val();
    var tel=$("#tel").val();
    $.post("update.php",{"id":id,"name":name,"password":password,"sex":sex,"college":college,"ban":ban,"tel":tel},function(data){
  if(data==200){
    alert("更新成功");
     window.location.href="../index_ok.php";//页面自动刷新
 
  }
       
       
 
});
 });
});
 </script>

<?php
 }

?>