echo "<form action=\"".$_SERVER['PHP_SELF']."\" method=\"POST\">";
if ($isAdmin === '1'){
echo "<input id=\"checkbox\" name=\"checkbox\" type=\"checkbox\" checked=\"checked\" value=\"1\" />";
} else {
echo "<input id=\"checkbox\" name=\"checkbox\" type=\"checkbox\" value=\"0\" />";
}
echo "<input type=\"submit\" name=\"formSubmit\" value=\"X\" />";
echo "</form>";
上面的代码在while循环中,因此它为每个用户创建一个表单。我的PHP代码如下所示:
$status = '0';
if (isset($_POST['checkbox']) && $_POST['checkbox'] == '1') {
$status = $_POST['checkbox'];
}
$stmt = $mysqli->prepare("UPDATE members SET isAdmin = ? WHERE id = \"$id\"");
$stmt->bind_param('s', $status);
$stmt->execute();
$stmt->close();
$mysqli->close();
如果没有实际将表单提交给服务器,为什么管理员用户只需刷新页面就成为非管理员用户?
更新后的代码:
?>
<form action="<?php echo htmlspecialchars($_SERVER['PHP_SELF']); ?>" method="POST">
<input type="checkbox" id="checkbox" name="checkbox" value="<?php echo ($checked)? '1' : '0'; ?>"<?php if($checked) echo ' checked="checked"'; ?> />
<input type="hidden" id="userid" name="userid" value="<? echo $members_row['id']; ?>" />
<input type="submit" id="submit" name="submit" value=">>" />
</form>
<?
$status = '0';
if (isset($_POST['checkbox']) && $_POST['checkbox'] == '1') {
$status = $_POST['checkbox'];
$id = $_POST['id'];
$stmt = $mysqli->prepare("UPDATE members SET isAdmin = ? WHERE id = \"$id\"");
$stmt->bind_param('s', $status);
$stmt->execute();
$stmt->close();
$mysqli->close();
}
答案 0 :(得分:0)
结合一些事情,将你的括号移到php片段的末尾,然后检查帖子是否已设置,但不是等于任何东西。 $status
将用于在发布时更新它。旁注,由于表单处于循环中,id="checkbox"
在使用javascript时会出现问题。 id="*"
应该是唯一的,以便提供价值。最后,$id
的来源在提供的脚本中是未知的,您还需要确保bind_param
对该值也是如此(也许应该由帖子提供?)。不确定该变量的来源如此难以评论。
$checked = ($isAdmin == '1');
?>
<form action="<?php echo htmlspecialchars($_SERVER['PHP_SELF']); ?>" method="POST">
<input id="checkbox" name="checkbox" type="checkbox" value="<?php echo ($checked)? '1' : '0'; ?>"<?php if($checked) echo ' checked="checked"'; ?> />
<input type="submit" name="formSubmit" value="X" />
</form>
<?php //continue with loop
由于您的表单引用PHP_SELF
:
<?php
if (isset($_POST['checkbox'])) {
$status = $_POST['checkbox'];
// The $id variable is suspect here. Probably should be provided by the post?
$stmt = $mysqli->prepare("UPDATE members SET isAdmin = ? WHERE id = '$id'");
$stmt->bind_param('s', $status);
$stmt->execute();
$stmt->close();
$mysqli->close();
}
如果我这样做,我会使用函数或类/方法使其更具人性化和可重用性:
function updateUserRole($id,$status,$mysqli)
{
$stmt = $mysqli->prepare("UPDATE members SET isAdmin = ? WHERE id = ?");
$stmt->bind_param('si', $status,$id);
$stmt->execute();
$stmt->close();
}
// To execute, include the function
// then run the "if" condition
if (isset($_POST['checkbox']))
updateUserRole($_POST['id'],$_POST['checkbox'],$mysqli);