按钮在表问题中执行PHP脚本

我已经设置了一个脚本，在一个表中显示我的数据库的所有成员，这些成员被称为“挂起点”。在该表中有一个按钮，管理员可以单击该按钮将这些挂起的点发送到表中该行的“点”，并将“挂起的点”重置为0。我已经制作了脚本来发送这些要点，但它似乎没有改变任何东西，即使它确实给出了成功的信息。感谢您的帮助

下面的图片将阐明：

发送points sendpoints.php的代码：

显示表格的代码：

在第一个脚本中，未定义$行

编辑：由于代码已更新，逻辑似乎不正确。您需要从$\u POST中提取用户名，并在更新中使用它

---

然而，有两个大问题：你不能处理特殊字符的逃逸，比如。这可能会破坏表单，并打开mysql注入安全漏洞。

据我所知，您希望只向特定的人发送按钮点击点，但在您的代码中，您正在做其他事情

注意：我在表单中添加了隐藏变量，以便仅向该特定用户发送点

<?  
include ("connect.php");


 if (isset($_POST['send'])) {

$username=$_POST'username'];
$result = mysqli_query($conn,"SELECT * FROM members WHERE username='$username' ");
$row = mysqli_fetch_array($result,MYSQLI_ASSOC);

$pendingpoints = $row['pendingpoints'];
$points = $row['points'];
$newpoints = $points + $pendingpoints;


 $q=mysqli_query($conn,"UPDATE members SET points='$newpoints',pendingpoints=0 WHERE    
     username='$username'");

     if($q){
 echo "Succesfully changed points for that user";
 }
 }

 ?>

显示表格的代码：

---

如何访问sendpoints.php中的$row？好的，我定义了row，但它仍然没有更改任何内容，也没有给出任何错误更新后的$username=$row['username']；这些变量应该在您选择的查询下。我更改了，但仍然是相同的结果。。。那么OP应该做些什么才能让它发挥作用呢？你只是说它没有定义，我也是；在一个评论中，这就是它。没有足够的信息来说明它应该是什么。我猜$row需要更改为$u POSTTrue。我不会碰这个，因为它只会打开一罐虫子。

<?
include ("connect.php");
$submit = $_POST['submit'];
if ($submit) {

 $result = mysqli_query($conn,"SELECT * FROM members WHERE pendingpoints > 0 ");
 $row = mysqli_fetch_array($result,         MYSQLI_ASSOC);

 while ($row = mysqli_fetch_assoc($result))
 {
 $username = $row['username'];
 $pendingpoints = $row['pendingpoints'];
 $points = $row['points'];
 $newpoints = $points + $pendingpoints;
 $ip = $row['ip'];

 echo "<table border='1'> 

 <tr>
     <td><b>Username:</b></td>   
     <td><b>Pendingpoints:</b></td>     
     <td><b>IP:</b></td>     
     <td><b>Confirm Points:</b></td>


 </tr> 
 <tr>
     <form id='1' action='sendpoints.php' method='post'>
     <td> $username </td>  
     <td> $pendingpoints </td>       
     <td> $ip </td>      
     <td><input type='submit' class='classname' name='send' value='Send'></form></td> 
 </tr>   

 <br> </table>"; 
}
}


?>

<?  
include ("connect.php");


 if (isset($_POST['send'])) {

$username=$_POST'username'];
$result = mysqli_query($conn,"SELECT * FROM members WHERE username='$username' ");
$row = mysqli_fetch_array($result,MYSQLI_ASSOC);

$pendingpoints = $row['pendingpoints'];
$points = $row['points'];
$newpoints = $points + $pendingpoints;


 $q=mysqli_query($conn,"UPDATE members SET points='$newpoints',pendingpoints=0 WHERE    
     username='$username'");

     if($q){
 echo "Succesfully changed points for that user";
 }
 }

 ?>

<?
include ("connect.php");
$submit = $_POST['submit'];
if ($submit) {

 $result = mysqli_query($conn,"SELECT * FROM members WHERE pendingpoints > 0 ");
 $row = mysqli_fetch_array($result,         MYSQLI_ASSOC);

 while ($row = mysqli_fetch_assoc($result))
 {
 $username = $row['username'];
 $pendingpoints = $row['pendingpoints'];
 $points = $row['points'];
 $newpoints = $points + $pendingpoints;
 $ip = $row['ip'];

 echo "<table border='1'> 

 <tr>
     <td><b>Username:</b></td>   
     <td><b>Pendingpoints:</b></td>     
     <td><b>IP:</b></td>     
     <td><b>Confirm Points:</b></td>


 </tr> 
 <tr>
     <td> $username </td>  
     <td> $pendingpoints </td>       
     <td> $ip </td>      
     <td><form id='1' action='sendpoints.php' method='post'><input type='submit' class='classname' name='send' value='Send'><input type='hidden' name='username' value='$username'></form></td> 
 </tr>   

 <br> </table>"; 
}
}


?>