prepare("SELECT password FROM admins WHERE id = ?");
$stmt->execute([$admin['id']]);
$row = $stmt->fetch();
if (!password_verify($old_password, $row['password'])) {
$error = '旧密码错误';
} elseif (empty($new_username)) {
$error = '用户名不能为空';
} elseif (strlen($new_password) < 6) {
$error = '新密码长度至少6位';
} elseif ($new_password !== $confirm_password) {
$error = '两次输入的密码不一致';
} else {
// 检查用户名是否已被占用（排除自己）
$stmt = $db->prepare("SELECT COUNT(*) FROM admins WHERE username = ? AND id != ?");
$stmt->execute([$new_username, $admin['id']]);
if ($stmt->fetchColumn() > 0) {
$error = '用户名已被占用';
} else {
// 更新
$hashed = password_hash($new_password, PASSWORD_DEFAULT);
$stmt = $db->prepare("UPDATE admins SET username = ?, password = ? WHERE id = ?");
$stmt->execute([$new_username, $hashed, $admin['id']]);
// 更新session中的用户名
$_SESSION['admin_username'] = $new_username;
$success = '用户名和密码已更新，请重新登录';
// 可选：强制退出重新登录
// session_destroy();
// header('Location: login.php');
// exit;
}
}
}
?>
修改密码 - 电影全纪录