HEX

File: /var/www/w230/html/attendance/login.php
<?php
session_start();
require 'db.php';

$error = '';

if ($_SERVER["REQUEST_METHOD"] == "POST") {
    $username = trim($_POST["username"]);
    $password = $_POST["password"];

    $sql = "SELECT * FROM teachers WHERE username = ?";
    $stmt = $conn->prepare($sql);
    $stmt->bind_param("s", $username);
    $stmt->execute();
    $result = $stmt->get_result();

    if ($user = $result->fetch_assoc()) {
        if (password_verify($password, $user["password"])) {
            $_SESSION["teacher_id"] = $user["id"];
            $_SESSION["teacher_name"] = $user["username"];
            $_SESSION["full_name"] = $user["full_name"];
            $_SESSION["role"] = $user["role"];
            header("Location: dashboard.php");
            exit;
        } else {
            $error = "รหัสผ่านไม่ถูกต้อง";
        }
    } else {
        $error = "ไม่พบชื่อผู้ใช้ในระบบ";
    }
}
?>

<!DOCTYPE html>
<html lang="th">
<head>
    <meta charset="UTF-8">
    <title>เข้าสู่ระบบครูเวร</title>
    <link href="https://fonts.googleapis.com/css2?family=Sarabun&display=swap" rel="stylesheet">
    <style>
        * {
            box-sizing: border-box;
            font-family: 'Sarabun', sans-serif;
        }

        body {
            background: linear-gradient(to right, #4facfe, #00f2fe);
            margin: 0;
            height: 100vh;
            display: flex;
            justify-content: center;
            align-items: center;
        }

        .login-container {
            background: #ffffff;
            padding: 40px;
            border-radius: 15px;
            width: 100%;
            max-width: 400px;
            box-shadow: 0px 0px 20px rgba(0, 0, 0, 0.15);
            text-align: center;
        }

        .login-container img {
            width: 100px;
            margin-bottom: 20px;
        }

        h2 {
            margin-bottom: 20px;
            color: #333333;
        }

        input[type="text"],
        input[type="password"] {
            width: 100%;
            padding: 12px 15px;
            margin: 10px 0 20px 0;
            border: 1px solid #ccc;
            border-radius: 8px;
            font-size: 16px;
        }

        input[type="submit"] {
            background-color: #4facfe;
            color: white;
            border: none;
            padding: 12px;
            width: 100%;
            border-radius: 8px;
            font-size: 16px;
            cursor: pointer;
            transition: 0.3s ease;
        }

        input[type="submit"]:hover {
            background-color: #00c6ff;
        }

        .error {
            color: red;
            margin-bottom: 15px;
        }

        @media (max-width: 480px) {
            .login-container {
                padding: 20px;
            }
        }
    </style>
</head>
<body>
<div class="login-container">
    <!-- โลโก้ผู้ใช้ (user icon) -->
    <!--<img src="https://cdn-icons-png.flaticon.com/512/1077/1077012.png" alt="User Icon">-->
    <img src="logo.png" alt="User Icon">
    
    <h2>เข้าสู่ระบบครูเวร</h2>
    
    <?php if ($error): ?>
        <div class="error"><?= $error ?></div>
    <?php endif; ?>

    <form method="post">
        <input type="text" name="username" placeholder="ชื่อผู้ใช้" required>
        <input type="password" name="password" placeholder="รหัสผ่าน" required>
        <input type="submit" value="เข้าสู่ระบบ">
    </form>
</div>
</body>
</html>