microsoft · KhuatKien · Apr 15, 2024 · Apr 15, 2024 · Apr 16, 2024 · Apr 19, 2024
diff --git a/BT_Login/home.php b/BT_Login/home.php
@@ -0,0 +1,37 @@
+<?php
+    session_start();
+    if(isset($_SESSION['username']) && ($_SESSION['username']!=""))
+    {
+        $username = $_SESSION['username'];
+    }
+    if(isset($_SESSION['password']) && ($_SESSION['password']!=""))
+    {
+        $password = $_SESSION['password'];
+    }
+    if($username!="") $logined="Xin chào: ".$username;
+    else $logined="Login";
+    if($password!="") $passworded="Mật khẩu: ".$password;
+    else $passworded="...";
+?>
+
+<!DOCTYPE html>
+<html lang="en">
+<head>
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <link href="//maxcdn.bootstrapcdn.com/bootstrap/4.1.1/css/bootstrap.min.css" rel="stylesheet" id="bootstrap-css">
+    <script src="//maxcdn.bootstrapcdn.com/bootstrap/4.1.1/js/bootstrap.min.js"></script>
+    <script src="//cdnjs.cloudflare.com/ajax/libs/jquery/3.2.1/jquery.min.js"></script>
+    <title>Logout</title>
+</head>
+
+<body>
+    <p style="margin: 20px;"><?=$logined?></p>
+    <p style="margin: 20px;"><?=$passworded?></p>   
+    <p style="margin: 20px;">
+        <a href="logout.php" class="btn btn-info btn-lg">
+          <span class="glyphicon glyphicon-log-out"></span> Thoát
+        </a>
+    </p>  
+</body>
+</html>
diff --git a/BT_Login/login.php b/BT_Login/login.php
@@ -0,0 +1,43 @@
+    <!DOCTYPE html>
+    <html lang="en">
+    <head>
+        <meta charset="UTF-8">
+        <meta name="viewport" content="width=device-width, initial-scale=1.0">
+        <link rel="stylesheet" href="style.css">
+        <link href="//maxcdn.bootstrapcdn.com/bootstrap/4.1.1/css/bootstrap.min.css" rel="stylesheet" id="bootstrap-css">
+        <script src="//maxcdn.bootstrapcdn.com/bootstrap/4.1.1/js/bootstrap.min.js"></script>
+        <script src="//cdnjs.cloudflare.com/ajax/libs/jquery/3.2.1/jquery.min.js"></script>
+        <title>Login</title>
+    </head>
+    <body>
+        <div id="login">
+            <h3 class="text-center text-white pt-5">Login form</h3>
+            <div class="container">
+                <div id="login-row" class="row justify-content-center align-items-center">
+                    <div id="login-column" class="col-md-6">
+                        <div id="login-box" class="col-md-12">
+                            <form id="login-form" class="form" action="validateuser.php" method="post">
+                                <h3 class="text-center text-info">Đăng nhập</h3>
+                                <div class="form-group">
+                                    <label for="username" class="text-info">Tài khoản:</label><br>
+                                    <input type="text" name="username" id="username" class="form-control">
+                                </div>
+                                <div class="form-group">
+                                    <label for="password" class="text-info">Mật khẩu:</label><br>
+                                    <input type="password" name="password" id="password" class="form-control">
+                                </div>
+                                <div class="form-group">
+                                    <label for="remember-me" class="text-info"><span>Ghi nhớ</span> <span><input id="remember-me" name="remember-me" type="checkbox"></span></label><br>
+                                    <input type="submit" name="login_submit" class="btn btn-info btn-md" value="Đăng nhập">
+                                </div>
+                                <div id="register-link" class="text-right">
+                                    <a href="signin.php" class="text-info">Đăng ký</a>
+                                </div>
+                            </form>
+                        </div>
+                    </div>
+                </div>
+            </div>
+        </div>
+    </body>
+    </html>
diff --git a/BT_Login/registeruser.php b/BT_Login/registeruser.php
@@ -0,0 +1,42 @@
+<?php
+    $host = "localhost";
+    $user = "root";
+    $password = "123456789";
+    $con = mysqli_connect($host, $user, $password);
+
+    mysqli_select_db($con, "login");
+    session_start();
+
+    if (!isset($_SESSION["IsLogin"])) {
+        $_SESSION["IsLogin"] = false;
+    }
+
+    if(isset($_POST['register_submit'])) {
+        $new_username = $_POST['new-username'];
+        $new_password = $_POST['new-password'];
+        $confirm_password = $_POST['confirm-password'];
+
+        // Kiểm tra xem mật khẩu và xác nhận mật khẩu có khớp nhau không
+        if($new_password != $confirm_password) {
+            echo "<script>alert('Mật khẩu và xác nhận mật khẩu không khớp!'); window.location.href = 'register.php';</script>";
+            exit(); // Thoát khỏi script nếu mật khẩu không khớp
+        }
+
+        // Kiểm tra xem tên người dùng đã tồn tại chưa
+        $check_query = "SELECT * FROM tbllogin WHERE username='$new_username'";
+        $check_result = mysqli_query($con, $check_query);
+
+        if(mysqli_num_rows($check_result) > 0) {
+            echo "<script>alert('Tên đăng nhập đã tồn tại!'); window.location.href = 'register.php';</script>";
+            exit(); // Thoát khỏi script nếu tên đăng nhập đã tồn tại
+        }
+
+        $hashed_password = sha1($new_password);
+
+        // Nếu không có vấn đề gì, thực hiện thêm người dùng vào cơ sở dữ liệu
+        $insert_query = "INSERT INTO tbllogin (username, password) VALUES ('$new_username', '$hashed_password')";
+        mysqli_query($con, $insert_query);
+
+        echo "<script>alert('Đăng ký thành công!'); window.location.href = 'login.php';</script>";
+    }
+?>
diff --git a/BT_Login/signin.php b/BT_Login/signin.php
@@ -0,0 +1,46 @@
+<!DOCTYPE html>
+<html lang="en">
+<head>
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <link rel="stylesheet" href="style.css">
+    <link href="//maxcdn.bootstrapcdn.com/bootstrap/4.1.1/css/bootstrap.min.css" rel="stylesheet" id="bootstrap-css">
+    <script src="//maxcdn.bootstrapcdn.com/bootstrap/4.1.1/js/bootstrap.min.js"></script>
+    <script src="//cdnjs.cloudflare.com/ajax/libs/jquery/3.2.1/jquery.min.js"></script>
+    <title>Register</title>
+</head>
+<body>
+    <div id="register">
+        <h3 class="text-center text-white pt-5">Register form</h3>
+        <div class="container">
+            <div id="register-row" class="row justify-content-center align-items-center">
+                <div id="register-column" class="col-md-6">
+                    <div id="register-box" class="col-md-12">
+                        <form id="register-form" class="form" action="registeruser.php" method="post">
+                            <h3 class="text-center text-info">Đăng ký</h3>
+                            <div class="form-group">
+                                <label for="new-username" class="text-info">Tài khoản:</label><br>
+                                <input type="text" name="new-username" id="new-username" class="form-control">
+                            </div>
+                            <div class="form-group">
+                                <label for="new-password" class="text-info">Mật khẩu:</label><br>
+                                <input type="password" name="new-password" id="new-password" class="form-control">
+                            </div>
+                            <div class="form-group">
+                                <label for="confirm-password" class="text-info">Xác nhận mật khẩu:</label><br>
+                                <input type="password" name="confirm-password" id="confirm-password" class="form-control">
+                            </div>
+                            <div class="form-group">
+                                <input type="submit" name="register_submit" class="btn btn-info btn-md" value="Đăng ký">
+                            </div>
+                            <div id="login-link" class="text-right">
+                                <a href="login.php" class="text-info">Đăng nhập</a>
+                            </div>
+                        </form>
+                    </div>
+                </div>
+            </div>
+        </div>
+    </div>
+</body>
+</html>
diff --git a/BT_Login/validateuser.php b/BT_Login/validateuser.php
@@ -0,0 +1,41 @@
+<?php
+    $host = "localhost";
+    $user = "root";
+    $password = "123456789";
+    $con = mysqli_connect($host, $user, $password);
+
+    mysqli_select_db($con, "login");
+    session_start();
+
+    if (!isset($_SESSION["IsLogin"])) {
+        $_SESSION["IsLogin"] = false;
+    }
+    // Kiểm tra xem nút Đăng nhập đã được bấm chưa
+    if(isset($_POST['login_submit'])) {
+        // Lấy dữ liệu từ form
+        $username = $_POST['username'];
+        $password = $_POST['password'];
+
+        $check_password = sha1($password); 
+        echo $check_password;
+        $query = "SELECT * FROM tbllogin WHERE username='$username' AND password='$check_password'";
+        $result = mysqli_query($con, $query);
+
+        // Kiểm tra kết quả trả về
+        if(mysqli_num_rows($result) == 1) {
+            // $content="/BT_login/logout.php";
+            // echo ("<script>location.href='$content'</script>");
+            $_SESSION["IsLogin"] = true;
+            $_SESSION['username'] = $username;
+            $_SESSION['password'] = $password;
+
+            // $update_query = "UPDATE tbllogin SET password='$hashed_password' WHERE username='$username'";
+            // mysqli_query($con, $update_query);
+            header("Location: home.php");
+        } else {
+            echo "<script>alert('Tên đăng nhập hoặc mật khẩu không đúng!'); window.location.href = 'login.php';</script>";
+        }
+    }
+
+
+?>
diff --git a/BT_QuanLySinhVien/sinhvien.php b/BT_QuanLySinhVien/sinhvien.php
@@ -0,0 +1,61 @@
+<!DOCTYPE html>
+<html lang="en">
+
+<head>
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <title>Sinh Viên</title>
+    <style>
+    table {
+        border-collapse: collapse;
+        width: 100%;
+    }
+
+    th,
+    td {
+        border: 1px solid black;
+        padding: 8px;
+        text-align: left;
+    }
+    </style>
+</head>
+
+<body>
+    <h3>Danh sách sinh viên đăng ký môn học</h3>
+    <table>
+        <thead>
+            <tr>
+                <th>MSSV</th>
+                <th>Họ và tên</th>
+                <th>Môn học</th>
+                <th>Kỳ học</th>
+            </tr>
+        </thead>
+        <tbody>
+            <?php
+                $host = "localhost";
+                $user = "root";
+                $password = "123456";
+                $con = mysqli_connect($host, $user, $password);
+
+                mysqli_select_db($con, "sinhvien");
+                session_start();
+                $query = mysqli_query($con, "SELECT sv.MSSV, sv.HoTen, mh.TenMH, dk.Ky
+                                                FROM tblsinhvien AS sv
+                                                JOIN tbldangky AS dk ON sv.MSSV = dk.MSSV
+                                                JOIN tblmonhoc AS mh ON mh.MaMH = dk.MaMH;");
+                while ($row = mysqli_fetch_array($query)) {
+                    echo "<tr>";
+                    echo "<td>".$row['MSSV']."</td>";
+                    echo "<td>".$row['HoTen']."</td>";
+                    echo "<td>".$row['TenMH']."</td>";
+                    echo "<td>".$row['Ky']."</td>";
+                    echo "</tr>";
+                }
+                mysqli_close($con);
+            ?>
+        </tbody>
+    </table>
+</body>
+
+</html>