setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
} catch (PDOException $e) {
die("数据库连接失败：" . $e->getMessage());
}
// 学生登录处理
if ($_SERVER['REQUEST_METHOD'] === 'POST' && isset($_POST['student_login'])) {
$class = trim($_POST['class'] ?? '');
$name = trim($_POST['name'] ?? '');
$exam_id = trim($_POST['exam_id'] ?? '');
$paper_type = trim($_POST['paper_type'] ?? '');
if (empty($class) || empty($name) || empty($exam_id) || empty($paper_type)) {
$_SESSION['login_error'] = '请填写完整信息（班级、姓名、准考证号、试卷类型不能为空）';
} else {
$_SESSION['student_info'] = [
'class' => $class,
'name' => $name,
'exam_id' => $exam_id,
'paper_type' => $paper_type
];
header('Location: http://ctsj.qrkj.top/submit.php');
exit;
}
}
// 管理员登录处理
if ($_SERVER['REQUEST_METHOD'] === 'POST' && isset($_POST['admin_login'])) {
$admin_user = trim($_POST['admin_user'] ?? '');
$admin_pwd = trim($_POST['admin_pwd'] ?? '');
$stmt = $pdo->prepare("SELECT * FROM admin WHERE admin_user = ? AND admin_pwd = md5(?)");
$stmt->execute([$admin_user, $admin_pwd]);
$admin = $stmt->fetch(PDO::FETCH_ASSOC);
if ($admin) {
$_SESSION['admin_info'] = $admin;
header('Location: http://ctsj.qrkj.top/admin.php');
exit;
} else {
$_SESSION['admin_error'] = '账号或密码错误，请重新输入';
}
}
// 已登录用户跳转
if (isset($_SESSION['student_info'])) {
header('Location: http://ctsj.qrkj.top/submit.php');
exit;
}
if (isset($_SESSION['admin_info'])) {
header('Location: http://ctsj.qrkj.top/admin.php');
exit;
}
?>
模考错题收集 - 登录入口