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Điều đầu tiên người dùng được yêu cầu là đăng nhập; Nếu đăng nhập thành công, người dùng được gửi đến index.php nếu không; Họ được yêu cầu nhập lại chi tiết của họ. Tôi muốn tên người dùng hiển thị trên index.php sau khi người dùng đăng nhập; Vì vậy, sử dụng hàm echo trong tệp index.php để GET tên người dùng từ đăng nhập //check to see if they match
if($username==$dbusername&&$password==$password)
{
$_SESSION['username']=$username;
echo "Welcome '.$username.'";
header('Location: nindex.php');
die();
}
else
echo "incorrect password";
}
else
die("That user does not exist");
}
else
die("please provide a username and password");
?>
Hỏi ngày 1 tháng 4 năm 2013 lúc 2:32Apr 1, 2013 at 2:32 S hs hS H 571 Huy hiệu vàng5 Huy hiệu bạc11 Huy hiệu đồng1 gold badge5 silver badges11 bronze badges 4 header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
HOẶC echo "Welcome '" . $username . "'";?>
<meta http-equiv="refresh" content="5; url=index.php" />
<?php
exit;#should be added so rest of page doesn't load.
Nên nói với họ Welcome 'username' sau đó chuyển hướng đến trang của bạn sau 5 giây, bạn có thể thay đổi 5 thành bất kỳ số nào bạn nghĩ là đủ dài. Có thể nên sử dụng meta vì tiêu đề có thể cho bạn một lỗi/cảnh báo. EDIT: Có vẻ như bạn muốn in Welcome 'username' trên trang index.php bạn có thể làm và chắc chắn rằng bạn có session_start() ở đầu mỗi trang. if(isset($_SESSION['username'])){
echo "Welcome '{$_SESSION['username']}'";
}
và xóa header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
0 khỏi trang đăng nhập của bạn. Nếu bạn muốn hiển thị nó khi tôi có thể sửa đổi câu trả lời của mình nếu bạn muốn. Đã trả lời ngày 1 tháng 4 năm 2013 lúc 2:35Apr 1, 2013 at 2:35 Lớp họcClass 3.1193 Huy hiệu vàng23 Huy hiệu bạc31 Huy hiệu Đồng3 gold badges23 silver badges31 bronze badges 6 Bạn không thể lặp lại bất kỳ đầu ra nào trước khi gọi 'tiêu đề', nếu không bạn sẽ gặp lỗi đó. Lệnh Echo cần được thực hiện trong trang được gọi là Nindex.php được gọi là
Đã trả lời ngày 1 tháng 4 năm 2013 lúc 2:34Apr 1, 2013 at 2:34 AcutesoftWareCutesoftwareacutesoftware 1.0733 huy hiệu vàng15 Huy hiệu bạc33 Huy hiệu đồng3 gold badges15 silver badges33 bronze badges 1 <?php
if(!empty($username) && !empty($password)) {
if($username == $dbusername && $password == $dbpassword) {
$_SESSION['username'] = $username;
header("Location: index.php?id=$username");
die();
}else {
echo 'incorrect username/password combination';
}
}else {
echo 'Username and Password NOT FOUND! ';
}
Trong index.php đặtindex.php put if(isset($_GET['id'])){
echo 'Welcome '.$_GET['id'];
}else {
echo '(write) a 404 page';
}
Đã trả lời ngày 1 tháng 4 năm 2013 lúc 2:34Apr 1, 2013 at 2:34
AcutesoftWareCutesoftwaresamayo 1.0733 huy hiệu vàng15 Huy hiệu bạc33 Huy hiệu đồng12 gold badges86 silver badges102 bronze badges 8 Trong các trang web mạng xã hội như Facebook, Instagram, v.v., tên người dùng và hình ảnh hồ sơ của người dùng đã đăng nhập được hiển thị trong tiêu đề của trang web và tiêu đề đó vẫn không đổi, không phân biệt trang web mà người dùng đã mở. Chức năng đó có thể được tạo bằng cách sử dụng các biến phiên. & NBSP; Các biến phiên chỉ tồn tại trong khi phiên của người dùng đang hoạt động. Sau khi phiên hoàn tất, các biến phiên bị phá hủy. Đây là duy nhất cho mỗi khách truy cập và thường được sử dụng để lưu trữ thông tin dành riêng cho người dùng như tên người dùng, ảnh hồ sơ, v.v., sau khi người dùng đăng nhập. & NBSP; Mã: & nbsp; Đây là một hệ thống đăng ký đơn giản. Trang đăng ký.php yêu cầu tên người dùng, email và mật khẩu mong muốn của người dùng, sau đó gửi dữ liệu đã nhập vào cơ sở dữ liệu, sau khi nhấp vào nút gửi. Sau đó, người dùng được chuyển hướng đến trang index.php trong đó tin nhắn chào mừng và tên người dùng của người dùng đã đăng nhập được hiển thị. Bước đầu tiên là tạo cơ sở dữ liệu và sau đó là một bảng bên trong nó. Cơ sở dữ liệu được đặt tên là ‘Đăng ký, và bảng được đặt tên là‘ người dùng. Bảng ‘người dùng sẽ chứa 4 trường. & NBSP;session variables.
Session variables exist only while the user’s session is active. After the session is complete, the session variables get destroyed. These are
unique for each visitor and are generally used to store user-specific information such as the username, profile picture etc, once the user logs in.
The session variables are used to display logged in user information in PHP.
Project Explanation and Code:
This is a simple registration system. The register.php page asks for the desired username, email, and password of the user, and then sends the entered data into the database, once the submit
button is clicked. After this, the user is redirected to the index.php page where a welcome message and the username of the logged-in user is displayed.
The first step is to create a database, and then a table inside it. The database is named ‘registration’, and the table is named ‘users’. The ‘users’ table will contain 4 fields. - ID - Khóa chính - Tăng tự động
- Tên người dùng - Varchar (100)
- Email - Varchar (100)
- Mật khẩu - Varchar (100) ‘ID, sẽ là khóa chính, điều đó có nghĩa là nó sẽ là duy nhất cho mỗi người dùng đã đăng ký. Nó cũng sẽ tự động tăng cho mỗi đăng ký mới. Kiểu dữ liệu cho tên người dùng, email và mật khẩu sẽ là varchar. Kích thước có thể được điều chỉnh theo yêu cầu tuy nhiên, 100 là đủ.sql mã cho bảng: & nbsp; & nbsp;
The ‘id’ will be
the primary key, it means that it will be unique for every registered user. It will also auto-increment for every new registration. The data type for username, email and password will be varchar. The size can be adjusted as per the requirement however, 100 is sufficient.
SQL code for the table:
SQLheader("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
1 header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
2 header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
3header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
4header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
5header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
6header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
7header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
8header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
4echo "Welcome '" . $username . "'";?>
<meta http-equiv="refresh" content="5; url=index.php" />
<?php
exit;#should be added so rest of page doesn't load.
5echo "Welcome '" . $username . "'";?>
<meta http-equiv="refresh" content="5; url=index.php" />
<?php
exit;#should be added so rest of page doesn't load.
6echo "Welcome '" . $username . "'";?>
<meta http-equiv="refresh" content="5; url=index.php" />
<?php
exit;#should be added so rest of page doesn't load.
7header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
8 header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
9echo "Welcome '" . $username . "'";?>
<meta http-equiv="refresh" content="5; url=index.php" />
<?php
exit;#should be added so rest of page doesn't load.
3header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
4if(isset($_SESSION['username'])){
echo "Welcome '{$_SESSION['username']}'";
}
2echo "Welcome '" . $username . "'";?>
<meta http-equiv="refresh" content="5; url=index.php" />
<?php
exit;#should be added so rest of page doesn't load.
6echo "Welcome '" . $username . "'";?>
<meta http-equiv="refresh" content="5; url=index.php" />
<?php
exit;#should be added so rest of page doesn't load.
7header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
8 header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
9echo "Welcome '" . $username . "'";?>
<meta http-equiv="refresh" content="5; url=index.php" />
<?php
exit;#should be added so rest of page doesn't load.
3Các <?php
if(!empty($username) && !empty($password)) {
if($username == $dbusername && $password == $dbpassword) {
$_SESSION['username'] = $username;
header("Location: index.php?id=$username");
die();
}else {
echo 'incorrect username/password combination';
}
}else {
echo 'Username and Password NOT FOUND! ';
}
6PhpMyAdmin sau cơ sở dữ liệu và tạo bảng Thư mục dự án, chứa các tệp cần thiết error.phpHTML________ 47 ________ 48 & nbsp; <?php
if(!empty($username) && !empty($password)) {
if($username == $dbusername && $password == $dbpassword) {
$_SESSION['username'] = $username;
header("Location: index.php?id=$username");
die();
}else {
echo 'incorrect username/password combination';
}
}else {
echo 'Username and Password NOT FOUND! ';
}
9header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
4if(isset($_GET['id'])){
echo 'Welcome '.$_GET['id'];
}else {
echo '(write) a 404 page';
}
1if(isset($_GET['id'])){
echo 'Welcome '.$_GET['id'];
}else {
echo '(write) a 404 page';
}
2 if(isset($_GET['id'])){
echo 'Welcome '.$_GET['id'];
}else {
echo '(write) a 404 page';
}
3if(isset($_GET['id'])){
echo 'Welcome '.$_GET['id'];
}else {
echo '(write) a 404 page';
}
4if(isset($_GET['id'])){
echo 'Welcome '.$_GET['id'];
}else {
echo '(write) a 404 page';
}
555555if(isset($_GET['id'])){
echo 'Welcome '.$_GET['id'];
}else {
echo '(write) a 404 page';
}
7<?php
if(!empty($username) && !empty($password)) {
if($username == $dbusername && $password == $dbpassword) {
$_SESSION['username'] = $username;
header("Location: index.php?id=$username");
die();
}else {
echo 'incorrect username/password combination';
}
}else {
echo 'Username and Password NOT FOUND! ';
}
7<?php
if(!empty($username) && !empty($password)) {
if($username == $dbusername && $password == $dbpassword) {
$_SESSION['username'] = $username;
header("Location: index.php?id=$username");
die();
}else {
echo 'incorrect username/password combination';
}
}else {
echo 'Username and Password NOT FOUND! ';
}
8 GET0if(isset($_GET['id'])){
echo 'Welcome '.$_GET['id'];
}else {
echo '(write) a 404 page';
}
1GET2GET3<?php
if(!empty($username) && !empty($password)) {
if($username == $dbusername && $password == $dbpassword) {
$_SESSION['username'] = $username;
header("Location: index.php?id=$username");
die();
}else {
echo 'incorrect username/password combination';
}
}else {
echo 'Username and Password NOT FOUND! ';
}
8 GET5GET2if(isset($_GET['id'])){
echo 'Welcome '.$_GET['id'];
}else {
echo '(write) a 404 page';
}
6if(isset($_GET['id'])){
echo 'Welcome '.$_GET['id'];
}else {
echo '(write) a 404 page';
}
7<?php
if(!empty($username) && !empty($password)) {
if($username == $dbusername && $password == $dbpassword) {
$_SESSION['username'] = $username;
header("Location: index.php?id=$username");
die();
}else {
echo 'incorrect username/password combination';
}
}else {
echo 'Username and Password NOT FOUND! ';
}
7<?php
if(!empty($username) && !empty($password)) {
if($username == $dbusername && $password == $dbpassword) {
$_SESSION['username'] = $username;
header("Location: index.php?id=$username");
die();
}else {
echo 'incorrect username/password combination';
}
}else {
echo 'Username and Password NOT FOUND! ';
}
8 Welcome 'username'1header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
4Welcome 'username'3if(isset($_GET['id'])){
echo 'Welcome '.$_GET['id'];
}else {
echo '(write) a 404 page';
}
22________ 47 ________ 48 & nbsp; Welcome 'username'8 Giải thích: Tệp ERROR.php chịu trách nhiệm giữ các thông báo lỗi của hệ thống. Giả sử người dùng nhập sai tên người dùng và mật khẩu sai, sau đó trong các trường hợp như vậy, các thông báo lỗi sẽ được lưu trữ trong biến $ ERROR, sau đó sẽ được hiển thị cho người dùng bằng cách sử dụng ‘Echo; chức năng của php.server.php & nbsp; The error.php file is responsible for holding the error messages of the system. Suppose the user enters the wrong username and password combination, then in such cases, the error messages will be stored in the $error variable, which will then be displayed to the user using ‘echo; function of PHP.
server.php PHPWelcome 'username'9
Welcome 'username'0
Welcome 'username'1 Welcome 'username'2Welcome 'username'3Welcome 'username'4
________ 85 & nbsp; & nbsp; & nbsp; Welcome 'username'2Welcome 'username'3Welcome 'username'4 Welcome 'username'9 Welcome 'username'2session_start()1session_start()2
session_start()3session_start()4session_start()5session_start()6Welcome 'username'3Welcome 'username'4
Is header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
09 header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
10header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
11session_start()4header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
13header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
14header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
4Welcome 'username'1 header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
17session_start()9header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
02header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
11session_start()4header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
22223header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
4Welcome 'username'5 header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
17session_start()9header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
02header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
11session_start()4header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
31header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
23header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
4header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
34 header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
17session_start()9header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
02211session_start()4header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
40header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
23header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
4header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
43 header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
17session_start()9header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
02211session_start()4header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
49header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
23header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
4header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
09 header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
53header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
54header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
53Welcome 'username'1header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
57header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
58header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
53Welcome 'username'9__1022162header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
4header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
09 header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
53header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
54header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
53Welcome 'username'55____157header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
58header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
53Welcome 'username'9__1022175163header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
4header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
09 header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
53header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
54header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
53header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
34header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
57header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
58header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
53__header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
4header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
09 header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
53header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
34 header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
94header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
43header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
96if(isset($_GET['id'])){
echo 'Welcome '.$_GET['id'];
}else {
echo '(write) a 404 page';
}
7header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
58header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
53Welcome 'username'9header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
02echo "Welcome '" . $username . "'";?>
<meta http-equiv="refresh" content="5; url=index.php" />
<?php
exit;#should be added so rest of page doesn't load.
02header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
08header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
4echo "Welcome '" . $username . "'";?>
<meta http-equiv="refresh" content="5; url=index.php" />
<?php
exit;#should be added so rest of page doesn't load.
05header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
4header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
09 header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
53echo "Welcome '" . $username . "'";?>
<meta http-equiv="refresh" content="5; url=index.php" />
<?php
exit;#should be added so rest of page doesn't load.
09header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
53Welcome 'username'9echo "Welcome '" . $username . "'";?>
<meta http-equiv="refresh" content="5; url=index.php" />
<?php
exit;#should be added so rest of page doesn't load.
12if(isset($_GET['id'])){
echo 'Welcome '.$_GET['id'];
}else {
echo '(write) a 404 page';
}
7echo "Welcome '" . $username . "'";?>
<meta http-equiv="refresh" content="5; url=index.php" />
<?php
exit;#should be added so rest of page doesn't load.
14 echo "Welcome '" . $username . "'";?>
<meta http-equiv="refresh" content="5; url=index.php" />
<?php
exit;#should be added so rest of page doesn't load.
15header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
34header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
08if(isset($_GET['id'])){
echo 'Welcome '.$_GET['id'];
}else {
echo '(write) a 404 page';
}
7echo "Welcome '" . $username . "'";?>
<meta http-equiv="refresh" content="5; url=index.php" />
<?php
exit;#should be added so rest of page doesn't load.
19 echo "Welcome '" . $username . "'";?>
<meta http-equiv="refresh" content="5; url=index.php" />
<?php
exit;#should be added so rest of page doesn't load.
20echo "Welcome '" . $username . "'";?>
<meta http-equiv="refresh" content="5; url=index.php" />
<?php
exit;#should be added so rest of page doesn't load.
21echo "Welcome '" . $username . "'";?>
<meta http-equiv="refresh" content="5; url=index.php" />
<?php
exit;#should be added so rest of page doesn't load.
22echo "Welcome '" . $username . "'";?>
<meta http-equiv="refresh" content="5; url=index.php" />
<?php
exit;#should be added so rest of page doesn't load.
23header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
02echo "Welcome '" . $username . "'";?>
<meta http-equiv="refresh" content="5; url=index.php" />
<?php
exit;#should be added so rest of page doesn't load.
25header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
02echo "Welcome '" . $username . "'";?>
<meta http-equiv="refresh" content="5; url=index.php" />
<?php
exit;#should be added so rest of page doesn't load.
27echo "Welcome '" . $username . "'";?>
<meta http-equiv="refresh" content="5; url=index.php" />
<?php
exit;#should be added so rest of page doesn't load.
28if(isset($_GET['id'])){
echo 'Welcome '.$_GET['id'];
}else {
echo '(write) a 404 page';
}
7echo "Welcome '" . $username . "'";?>
<meta http-equiv="refresh" content="5; url=index.php" />
<?php
exit;#should be added so rest of page doesn't load.
30session_start()9header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
02echo "Welcome '" . $username . "'";?>
<meta http-equiv="refresh" content="5; url=index.php" />
<?php
exit;#should be added so rest of page doesn't load.
19header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
08if(isset($_GET['id'])){
echo 'Welcome '.$_GET['id'];
}else {
echo '(write) a 404 page';
}
7session_start()3session_start()4header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
22session_start()6Welcome 'username'1Welcome 'username'4Các if(isset($_GET['id'])){
echo 'Welcome '.$_GET['id'];
}else {
echo '(write) a 404 page';
}
7echo "Welcome '" . $username . "'";?>
<meta http-equiv="refresh" content="5; url=index.php" />
<?php
exit;#should be added so rest of page doesn't load.
50echo "Welcome '" . $username . "'";?>
<meta http-equiv="refresh" content="5; url=index.php" />
<?php
exit;#should be added so rest of page doesn't load.
51header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
08header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
4echo "Welcome '" . $username . "'";?>
<meta http-equiv="refresh" content="5; url=index.php" />
<?php
exit;#should be added so rest of page doesn't load.
05echo "Welcome '" . $username . "'";?>
<meta http-equiv="refresh" content="5; url=index.php" />
<?php
exit;#should be added so rest of page doesn't load.
05header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
09 header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
10header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
11session_start()4echo "Welcome '" . $username . "'";?>
<meta http-equiv="refresh" content="5; url=index.php" />
<?php
exit;#should be added so rest of page doesn't load.
60header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
14header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
4Welcome 'username'1 header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
17session_start()9header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
02header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
11session_start()4header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
22223header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
4echo "Welcome '" . $username . "'";?>
<meta http-equiv="refresh" content="5; url=index.php" />
<?php
exit;#should be added so rest of page doesn't load.
14 header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
17session_start()9header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
02211session_start()4____278header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
23header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
4header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
09 header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
53header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
54header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
53Welcome 'username'1echo "Welcome '" . $username . "'";?>
<meta http-equiv="refresh" content="5; url=index.php" />
<?php
exit;#should be added so rest of page doesn't load.
86if(isset($_GET['id'])){
echo 'Welcome '.$_GET['id'];
}else {
echo '(write) a 404 page';
}
7header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
58header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
53Welcome 'username'9header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
02header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
62header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
08header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
4echo "Welcome '" . $username . "'";?>
<meta http-equiv="refresh" content="5; url=index.php" />
<?php
exit;#should be added so rest of page doesn't load.
05header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
4header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
09 header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
53header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
54header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
53echo "Welcome '" . $username . "'";?>
<meta http-equiv="refresh" content="5; url=index.php" />
<?php
exit;#should be added so rest of page doesn't load.
14echo "Welcome '" . $username . "'";?>
<meta http-equiv="refresh" content="5; url=index.php" />
<?php
exit;#should be added so rest of page doesn't load.
86if(isset($_GET['id'])){
echo 'Welcome '.$_GET['id'];
}else {
echo '(write) a 404 page';
}
7header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
58header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
53Welcome 'username'9header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
02header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
88header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
08header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
4echo "Welcome '" . $username . "'";?>
<meta http-equiv="refresh" content="5; url=index.php" />
<?php
exit;#should be added so rest of page doesn't load.
05header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
4header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
09 header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
53echo "Welcome '" . $username . "'";?>
<meta http-equiv="refresh" content="5; url=index.php" />
<?php
exit;#should be added so rest of page doesn't load.
09header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
53Welcome 'username'9echo "Welcome '" . $username . "'";?>
<meta http-equiv="refresh" content="5; url=index.php" />
<?php
exit;#should be added so rest of page doesn't load.
12if(isset($_GET['id'])){
echo 'Welcome '.$_GET['id'];
}else {
echo '(write) a 404 page';
}
7echo "Welcome '" . $username . "'";?>
<meta http-equiv="refresh" content="5; url=index.php" />
<?php
exit;#should be added so rest of page doesn't load.
14 echo "Welcome '" . $username . "'";?>
<meta http-equiv="refresh" content="5; url=index.php" />
<?php
exit;#should be added so rest of page doesn't load.
15header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
34header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
08if(isset($_GET['id'])){
echo 'Welcome '.$_GET['id'];
}else {
echo '(write) a 404 page';
}
7echo "Welcome '" . $username . "'";?>
<meta http-equiv="refresh" content="5; url=index.php" />
<?php
exit;#should be added so rest of page doesn't load.
19 echo "Welcome '" . $username . "'";?>
<meta http-equiv="refresh" content="5; url=index.php" />
<?php
exit;#should be added so rest of page doesn't load.
20Các header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
09 header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
10header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
11session_start()4echo "Welcome '" . $username . "'";?>
<meta http-equiv="refresh" content="5; url=index.php" />
<?php
exit;#should be added so rest of page doesn't load.
60header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
14header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
4Welcome 'username'1 header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
17session_start()9header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
02header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
11session_start()4header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
22223header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
4echo "Welcome '" . $username . "'";?>
<meta http-equiv="refresh" content="5; url=index.php" />
<?php
exit;#should be added so rest of page doesn't load.
14 header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
17session_start()9header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
02211session_start()4____278header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
23if(isset($_SESSION['username'])){
echo "Welcome '{$_SESSION['username']}'";
}
44session_start()3session_start()4session_start()5session_start()6if(isset($_SESSION['username'])){
echo "Welcome '{$_SESSION['username']}'";
}
56Welcome 'username'4if(isset($_SESSION['username'])){
echo "Welcome '{$_SESSION['username']}'";
}
44echo "Welcome '" . $username . "'";?>
<meta http-equiv="refresh" content="5; url=index.php" />
<?php
exit;#should be added so rest of page doesn't load.
50echo "Welcome '" . $username . "'";?>
<meta http-equiv="refresh" content="5; url=index.php" />
<?php
exit;#should be added so rest of page doesn't load.
51header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
08if(isset($_GET['id'])){
echo 'Welcome '.$_GET['id'];
}else {
echo '(write) a 404 page';
}
7echo "Welcome '" . $username . "'";?>
<meta http-equiv="refresh" content="5; url=index.php" />
<?php
exit;#should be added so rest of page doesn't load.
05header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
4header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
09 header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
53header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
54header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
53Welcome 'username'1echo "Welcome '" . $username . "'";?>
<meta http-equiv="refresh" content="5; url=index.php" />
<?php
exit;#should be added so rest of page doesn't load.
86if(isset($_SESSION['username'])){
echo "Welcome '{$_SESSION['username']}'";
}
44header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
58header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
53Welcome 'username'9header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
02if(isset($_SESSION['username'])){
echo "Welcome '{$_SESSION['username']}'";
}
72header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
08if(isset($_GET['id'])){
echo 'Welcome '.$_GET['id'];
}else {
echo '(write) a 404 page';
}
7echo "Welcome '" . $username . "'";?>
<meta http-equiv="refresh" content="5; url=index.php" />
<?php
exit;#should be added so rest of page doesn't load.
05header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
4echo "Welcome '" . $username . "'";?>
<meta http-equiv="refresh" content="5; url=index.php" />
<?php
exit;#should be added so rest of page doesn't load.
05echo "Welcome '" . $username . "'";?>
<meta http-equiv="refresh" content="5; url=index.php" />
<?php
exit;#should be added so rest of page doesn't load.
05if(isset($_SESSION['username'])){
echo "Welcome '{$_SESSION['username']}'";
}
79header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
4header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
09 header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
53header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
54header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
53echo "Welcome '" . $username . "'";?>
<meta http-equiv="refresh" content="5; url=index.php" />
<?php
exit;#should be added so rest of page doesn't load.
14echo "Welcome '" . $username . "'";?>
<meta http-equiv="refresh" content="5; url=index.php" />
<?php
exit;#should be added so rest of page doesn't load.
86 The session is started using session_start() method. After that, the variables are declared and an error array is created. It will store all the error
messages. The server.php page is then connected to the ‘registration’ database created earlier. After the user clicks the ‘register’ button on the register.php button, the data entered is sent to the database, and this completes a new registration. However, form validation is done before that to make sure that the user is filling the form correctly. All the fields are required and cannot be left blank.
Line 18 – 21: mysqli_real_escape_string escapes the
special characters before sending the data to the database. This is essential for database security from SQL injections.
Line 25 – 27: These lines makes sure that the user is filling all the input boxes, and whether the ‘password’ and ‘confirm password’ matches. If both the password matches, then the code further runs.
Line 29 – 32: Checking whether the password matches or not.
Line 35 – 46: If the number of errors until this
point is zero, the password is then ‘md5’ encrypted and the data entered is sent to the database. After the registration process is complete, the username is stored in the session variable, and the user is redirected to the index.php page, where he is asked to enter the login credentials.
Line 50 – 80: First the username and password entered in sanitized. This is essential to increase database security, as it eliminates the chances of any SQL injection. The user gets an error
message if the username or the password field is left blank.
If the number of errors until this point of code is found to be 0, then a database check is run. If the username entered by the user is found to be present in the database, then the user successfully logs in. The user is then redirected to the ‘index.php’ page.
login.php
HTML<?php
if(!empty($username) && !empty($password)) {
if($username == $dbusername && $password == $dbpassword) {
$_SESSION['username'] = $username;
header("Location: index.php?id=$username");
die();
}else {
echo 'incorrect username/password combination';
}
}else {
echo 'Username and Password NOT FOUND! ';
}
7<?php
if(!empty($username) && !empty($password)) {
if($username == $dbusername && $password == $dbpassword) {
$_SESSION['username'] = $username;
header("Location: index.php?id=$username");
die();
}else {
echo 'incorrect username/password combination';
}
}else {
echo 'Username and Password NOT FOUND! ';
}
8 if(isset($_SESSION['username'])){
echo "Welcome '{$_SESSION['username']}'";
}
82if(isset($_SESSION['username'])){
echo "Welcome '{$_SESSION['username']}'";
}
83if(isset($_GET['id'])){
echo 'Welcome '.$_GET['id'];
}else {
echo '(write) a 404 page';
}
1if(isset($_SESSION['username'])){
echo "Welcome '{$_SESSION['username']}'";
}
85if(isset($_GET['id'])){
echo 'Welcome '.$_GET['id'];
}else {
echo '(write) a 404 page';
}
6if(isset($_GET['id'])){
echo 'Welcome '.$_GET['id'];
}else {
echo '(write) a 404 page';
}
1if(isset($_SESSION['username'])){
echo "Welcome '{$_SESSION['username']}'";
}
88if(isset($_GET['id'])){
echo 'Welcome '.$_GET['id'];
}else {
echo '(write) a 404 page';
}
6header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
4if(isset($_GET['id'])){
echo 'Welcome '.$_GET['id'];
}else {
echo '(write) a 404 page';
}
1if(isset($_SESSION['username'])){
echo "Welcome '{$_SESSION['username']}'";
}
92if(isset($_GET['id'])){
echo 'Welcome '.$_GET['id'];
}else {
echo '(write) a 404 page';
}
6if(isset($_GET['id'])){
echo 'Welcome '.$_GET['id'];
}else {
echo '(write) a 404 page';
}
7if(isset($_SESSION['username'])){
echo "Welcome '{$_SESSION['username']}'";
}
95if(isset($_GET['id'])){
echo 'Welcome '.$_GET['id'];
}else {
echo '(write) a 404 page';
}
7if(isset($_SESSION['username'])){
echo "Welcome '{$_SESSION['username']}'";
}
97header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
4Welcome 'username'3if(isset($_SESSION['username'])){
echo "Welcome '{$_SESSION['username']}'";
}
92if(isset($_GET['id'])){
echo 'Welcome '.$_GET['id'];
}else {
echo '(write) a 404 page';
}
6header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
4if(isset($_GET['id'])){
echo 'Welcome '.$_GET['id'];
}else {
echo '(write) a 404 page';
}
1<?php
if(!empty($username) && !empty($password)) {
if($username == $dbusername && $password == $dbpassword) {
$_SESSION['username'] = $username;
header("Location: index.php?id=$username");
die();
}else {
echo 'incorrect username/password combination';
}
}else {
echo 'Username and Password NOT FOUND! ';
}
04 <?php
if(!empty($username) && !empty($password)) {
if($username == $dbusername && $password == $dbpassword) {
$_SESSION['username'] = $username;
header("Location: index.php?id=$username");
die();
}else {
echo 'incorrect username/password combination';
}
}else {
echo 'Username and Password NOT FOUND! ';
}
05if(isset($_GET['id'])){
echo 'Welcome '.$_GET['id'];
}else {
echo '(write) a 404 page';
}
4<?php
if(!empty($username) && !empty($password)) {
if($username == $dbusername && $password == $dbpassword) {
$_SESSION['username'] = $username;
header("Location: index.php?id=$username");
die();
}else {
echo 'incorrect username/password combination';
}
}else {
echo 'Username and Password NOT FOUND! ';
}
07 <?php
if(!empty($username) && !empty($password)) {
if($username == $dbusername && $password == $dbpassword) {
$_SESSION['username'] = $username;
header("Location: index.php?id=$username");
die();
}else {
echo 'incorrect username/password combination';
}
}else {
echo 'Username and Password NOT FOUND! ';
}
08if(isset($_GET['id'])){
echo 'Welcome '.$_GET['id'];
}else {
echo '(write) a 404 page';
}
4<?php
if(!empty($username) && !empty($password)) {
if($username == $dbusername && $password == $dbpassword) {
$_SESSION['username'] = $username;
header("Location: index.php?id=$username");
die();
}else {
echo 'incorrect username/password combination';
}
}else {
echo 'Username and Password NOT FOUND! ';
}
10if(isset($_SESSION['username'])){
echo "Welcome '{$_SESSION['username']}'";
}
44<?php
if(!empty($username) && !empty($password)) {
if($username == $dbusername && $password == $dbpassword) {
$_SESSION['username'] = $username;
header("Location: index.php?id=$username");
die();
}else {
echo 'incorrect username/password combination';
}
}else {
echo 'Username and Password NOT FOUND! ';
}
12if(isset($_GET['id'])){
echo 'Welcome '.$_GET['id'];
}else {
echo '(write) a 404 page';
}
4<?php
if(!empty($username) && !empty($password)) {
if($username == $dbusername && $password == $dbpassword) {
$_SESSION['username'] = $username;
header("Location: index.php?id=$username");
die();
}else {
echo 'incorrect username/password combination';
}
}else {
echo 'Username and Password NOT FOUND! ';
}
14if(isset($_GET['id'])){
echo 'Welcome '.$_GET['id'];
}else {
echo '(write) a 404 page';
}
6Welcome 'username'3
if(isset($_SESSION['username'])){
echo "Welcome '{$_SESSION['username']}'";
}
88if(isset($_GET['id'])){
echo 'Welcome '.$_GET['id'];
}else {
echo '(write) a 404 page';
}
6if(isset($_GET['id'])){
echo 'Welcome '.$_GET['id'];
}else {
echo '(write) a 404 page';
}
1<?php
if(!empty($username) && !empty($password)) {
if($username == $dbusername && $password == $dbpassword) {
$_SESSION['username'] = $username;
header("Location: index.php?id=$username");
die();
}else {
echo 'incorrect username/password combination';
}
}else {
echo 'Username and Password NOT FOUND! ';
}
20if(isset($_GET['id'])){
echo 'Welcome '.$_GET['id'];
}else {
echo '(write) a 404 page';
}
6header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
4if(isset($_GET['id'])){
echo 'Welcome '.$_GET['id'];
}else {
echo '(write) a 404 page';
}
1if(isset($_GET['id'])){
echo 'Welcome '.$_GET['id'];
}else {
echo '(write) a 404 page';
}
2 if(isset($_GET['id'])){
echo 'Welcome '.$_GET['id'];
}else {
echo '(write) a 404 page';
}
3if(isset($_GET['id'])){
echo 'Welcome '.$_GET['id'];
}else {
echo '(write) a 404 page';
}
4<?php
if(!empty($username) && !empty($password)) {
if($username == $dbusername && $password == $dbpassword) {
$_SESSION['username'] = $username;
header("Location: index.php?id=$username");
die();
}else {
echo 'incorrect username/password combination';
}
}else {
echo 'Username and Password NOT FOUND! ';
}
27if(isset($_GET['id'])){
echo 'Welcome '.$_GET['id'];
}else {
echo '(write) a 404 page';
}
6if(isset($_GET['id'])){
echo 'Welcome '.$_GET['id'];
}else {
echo '(write) a 404 page';
}
7if(isset($_GET['id'])){
echo 'Welcome '.$_GET['id'];
}else {
echo '(write) a 404 page';
}
1<?php
if(!empty($username) && !empty($password)) {
if($username == $dbusername && $password == $dbpassword) {
$_SESSION['username'] = $username;
header("Location: index.php?id=$username");
die();
}else {
echo 'incorrect username/password combination';
}
}else {
echo 'Username and Password NOT FOUND! ';
}
31<?php
if(!empty($username) && !empty($password)) {
if($username == $dbusername && $password == $dbpassword) {
$_SESSION['username'] = $username;
header("Location: index.php?id=$username");
die();
}else {
echo 'incorrect username/password combination';
}
}else {
echo 'Username and Password NOT FOUND! ';
}
32<?php
if(!empty($username) && !empty($password)) {
if($username == $dbusername && $password == $dbpassword) {
$_SESSION['username'] = $username;
header("Location: index.php?id=$username");
die();
}else {
echo 'incorrect username/password combination';
}
}else {
echo 'Username and Password NOT FOUND! ';
}
31if(isset($_GET['id'])){
echo 'Welcome '.$_GET['id'];
}else {
echo '(write) a 404 page';
}
6header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
4Welcome 'username'3if(isset($_GET['id'])){
echo 'Welcome '.$_GET['id'];
}else {
echo '(write) a 404 page';
}
22header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
4if(isset($_GET['id'])){
echo 'Welcome '.$_GET['id'];
}else {
echo '(write) a 404 page';
}
1<?php
if(!empty($username) && !empty($password)) {
if($username == $dbusername && $password == $dbpassword) {
$_SESSION['username'] = $username;
header("Location: index.php?id=$username");
die();
}else {
echo 'incorrect username/password combination';
}
}else {
echo 'Username and Password NOT FOUND! ';
}
41 <?php
if(!empty($username) && !empty($password)) {
if($username == $dbusername && $password == $dbpassword) {
$_SESSION['username'] = $username;
header("Location: index.php?id=$username");
die();
}else {
echo 'incorrect username/password combination';
}
}else {
echo 'Username and Password NOT FOUND! ';
}
42if(isset($_GET['id'])){
echo 'Welcome '.$_GET['id'];
}else {
echo '(write) a 404 page';
}
4<?php
if(!empty($username) && !empty($password)) {
if($username == $dbusername && $password == $dbpassword) {
$_SESSION['username'] = $username;
header("Location: index.php?id=$username");
die();
}else {
echo 'incorrect username/password combination';
}
}else {
echo 'Username and Password NOT FOUND! ';
}
44 <?php
if(!empty($username) && !empty($password)) {
if($username == $dbusername && $password == $dbpassword) {
$_SESSION['username'] = $username;
header("Location: index.php?id=$username");
die();
}else {
echo 'incorrect username/password combination';
}
}else {
echo 'Username and Password NOT FOUND! ';
}
45if(isset($_GET['id'])){
echo 'Welcome '.$_GET['id'];
}else {
echo '(write) a 404 page';
}
4<?php
if(!empty($username) && !empty($password)) {
if($username == $dbusername && $password == $dbpassword) {
$_SESSION['username'] = $username;
header("Location: index.php?id=$username");
die();
}else {
echo 'incorrect username/password combination';
}
}else {
echo 'Username and Password NOT FOUND! ';
}
47if(isset($_GET['id'])){
echo 'Welcome '.$_GET['id'];
}else {
echo '(write) a 404 page';
}
6if(isset($_GET['id'])){
echo 'Welcome '.$_GET['id'];
}else {
echo '(write) a 404 page';
}
7<?php
if(!empty($username) && !empty($password)) {
if($username == $dbusername && $password == $dbpassword) {
$_SESSION['username'] = $username;
header("Location: index.php?id=$username");
die();
}else {
echo 'incorrect username/password combination';
}
}else {
echo 'Username and Password NOT FOUND! ';
}
7<?php
if(!empty($username) && !empty($password)) {
if($username == $dbusername && $password == $dbpassword) {
$_SESSION['username'] = $username;
header("Location: index.php?id=$username");
die();
}else {
echo 'incorrect username/password combination';
}
}else {
echo 'Username and Password NOT FOUND! ';
}
8 <?php
if(!empty($username) && !empty($password)) {
if($username == $dbusername && $password == $dbpassword) {
$_SESSION['username'] = $username;
header("Location: index.php?id=$username");
die();
}else {
echo 'incorrect username/password combination';
}
}else {
echo 'Username and Password NOT FOUND! ';
}
52if(isset($_GET['id'])){
echo 'Welcome '.$_GET['id'];
}else {
echo '(write) a 404 page';
}
7if(isset($_GET['id'])){
echo 'Welcome '.$_GET['id'];
}else {
echo '(write) a 404 page';
}
1if(isset($_GET['id'])){
echo 'Welcome '.$_GET['id'];
}else {
echo '(write) a 404 page';
}
2 if(isset($_GET['id'])){
echo 'Welcome '.$_GET['id'];
}else {
echo '(write) a 404 page';
}
3if(isset($_GET['id'])){
echo 'Welcome '.$_GET['id'];
}else {
echo '(write) a 404 page';
}
4<?php
if(!empty($username) && !empty($password)) {
if($username == $dbusername && $password == $dbpassword) {
$_SESSION['username'] = $username;
header("Location: index.php?id=$username");
die();
}else {
echo 'incorrect username/password combination';
}
}else {
echo 'Username and Password NOT FOUND! ';
}
58if(isset($_GET['id'])){
echo 'Welcome '.$_GET['id'];
}else {
echo '(write) a 404 page';
}
6if(isset($_SESSION['username'])){
echo "Welcome '{$_SESSION['username']}'";
}
44if(isset($_GET['id'])){
echo 'Welcome '.$_GET['id'];
}else {
echo '(write) a 404 page';
}
1<?php
if(!empty($username) && !empty($password)) {
if($username == $dbusername && $password == $dbpassword) {
$_SESSION['username'] = $username;
header("Location: index.php?id=$username");
die();
}else {
echo 'incorrect username/password combination';
}
}else {
echo 'Username and Password NOT FOUND! ';
}
62<?php
if(!empty($username) && !empty($password)) {
if($username == $dbusername && $password == $dbpassword) {
$_SESSION['username'] = $username;
header("Location: index.php?id=$username");
die();
}else {
echo 'incorrect username/password combination';
}
}else {
echo 'Username and Password NOT FOUND! ';
}
63<?php
if(!empty($username) && !empty($password)) {
if($username == $dbusername && $password == $dbpassword) {
$_SESSION['username'] = $username;
header("Location: index.php?id=$username");
die();
}else {
echo 'incorrect username/password combination';
}
}else {
echo 'Username and Password NOT FOUND! ';
}
62if(isset($_GET['id'])){
echo 'Welcome '.$_GET['id'];
}else {
echo '(write) a 404 page';
}
6if(isset($_SESSION['username'])){
echo "Welcome '{$_SESSION['username']}'";
}
44if(isset($_GET['id'])){
echo 'Welcome '.$_GET['id'];
}else {
echo '(write) a 404 page';
}
1<?php
if(!empty($username) && !empty($password)) {
if($username == $dbusername && $password == $dbpassword) {
$_SESSION['username'] = $username;
header("Location: index.php?id=$username");
die();
}else {
echo 'incorrect username/password combination';
}
}else {
echo 'Username and Password NOT FOUND! ';
}
68 <?php
if(!empty($username) && !empty($password)) {
if($username == $dbusername && $password == $dbpassword) {
$_SESSION['username'] = $username;
header("Location: index.php?id=$username");
die();
}else {
echo 'incorrect username/password combination';
}
}else {
echo 'Username and Password NOT FOUND! ';
}
08if(isset($_GET['id'])){
echo 'Welcome '.$_GET['id'];
}else {
echo '(write) a 404 page';
}
4__if(isset($_GET['id'])){
echo 'Welcome '.$_GET['id'];
}else {
echo '(write) a 404 page';
}
7Welcome 'username'3if(isset($_GET['id'])){
echo 'Welcome '.$_GET['id'];
}else {
echo '(write) a 404 page';
}
2if(isset($_GET['id'])){
echo 'Welcome '.$_GET['id'];
}else {
echo '(write) a 404 page';
}
6if(isset($_GET['id'])){
echo 'Welcome '.$_GET['id'];
}else {
echo '(write) a 404 page';
}
7if(isset($_GET['id'])){
echo 'Welcome '.$_GET['id'];
}else {
echo '(write) a 404 page';
}
1if(isset($_GET['id'])){
echo 'Welcome '.$_GET['id'];
}else {
echo '(write) a 404 page';
}
2 if(isset($_GET['id'])){
echo 'Welcome '.$_GET['id'];
}else {
echo '(write) a 404 page';
}
3if(isset($_GET['id'])){
echo 'Welcome '.$_GET['id'];
}else {
echo '(write) a 404 page';
}
4<?php
if(!empty($username) && !empty($password)) {
if($username == $dbusername && $password == $dbpassword) {
$_SESSION['username'] = $username;
header("Location: index.php?id=$username");
die();
}else {
echo 'incorrect username/password combination';
}
}else {
echo 'Username and Password NOT FOUND! ';
}
58if(isset($_GET['id'])){
echo 'Welcome '.$_GET['id'];
}else {
echo '(write) a 404 page';
}
6if(isset($_SESSION['username'])){
echo "Welcome '{$_SESSION['username']}'";
}
44if(isset($_GET['id'])){
echo 'Welcome '.$_GET['id'];
}else {
echo '(write) a 404 page';
}
1<?php
if(!empty($username) && !empty($password)) {
if($username == $dbusername && $password == $dbpassword) {
$_SESSION['username'] = $username;
header("Location: index.php?id=$username");
die();
}else {
echo 'incorrect username/password combination';
}
}else {
echo 'Username and Password NOT FOUND! ';
}
62<?php
if(!empty($username) && !empty($password)) {
if($username == $dbusername && $password == $dbpassword) {
$_SESSION['username'] = $username;
header("Location: index.php?id=$username");
die();
}else {
echo 'incorrect username/password combination';
}
}else {
echo 'Username and Password NOT FOUND! ';
}
90<?php
if(!empty($username) && !empty($password)) {
if($username == $dbusername && $password == $dbpassword) {
$_SESSION['username'] = $username;
header("Location: index.php?id=$username");
die();
}else {
echo 'incorrect username/password combination';
}
}else {
echo 'Username and Password NOT FOUND! ';
}
62if(isset($_GET['id'])){
echo 'Welcome '.$_GET['id'];
}else {
echo '(write) a 404 page';
}
6
if(isset($_SESSION['username'])){
echo "Welcome '{$_SESSION['username']}'";
}
44if(isset($_GET['id'])){
echo 'Welcome '.$_GET['id'];
}else {
echo '(write) a 404 page';
}
1<?php
if(!empty($username) && !empty($password)) {
if($username == $dbusername && $password == $dbpassword) {
$_SESSION['username'] = $username;
header("Location: index.php?id=$username");
die();
}else {
echo 'incorrect username/password combination';
}
}else {
echo 'Username and Password NOT FOUND! ';
}
68 <?php
if(!empty($username) && !empty($password)) {
if($username == $dbusername && $password == $dbpassword) {
$_SESSION['username'] = $username;
header("Location: index.php?id=$username");
die();
}else {
echo 'incorrect username/password combination';
}
}else {
echo 'Username and Password NOT FOUND! ';
}
08if(isset($_GET['id'])){
echo 'Welcome '.$_GET['id'];
}else {
echo '(write) a 404 page';
}
4__if(isset($_GET['id'])){
echo 'Welcome '.$_GET['id'];
}else {
echo '(write) a 404 page';
}
7Welcome 'username'3if(isset($_GET['id'])){
echo 'Welcome '.$_GET['id'];
}else {
echo '(write) a 404 page';
}
2if(isset($_GET['id'])){
echo 'Welcome '.$_GET['id'];
}else {
echo '(write) a 404 page';
}
6if(isset($_GET['id'])){
echo 'Welcome '.$_GET['id'];
}else {
echo '(write) a 404 page';
}
7if(isset($_GET['id'])){
echo 'Welcome '.$_GET['id'];
}else {
echo '(write) a 404 page';
}
1if(isset($_GET['id'])){
echo 'Welcome '.$_GET['id'];
}else {
echo '(write) a 404 page';
}
2 if(isset($_GET['id'])){
echo 'Welcome '.$_GET['id'];
}else {
echo '(write) a 404 page';
}
3if(isset($_GET['id'])){
echo 'Welcome '.$_GET['id'];
}else {
echo '(write) a 404 page';
}
4<?php
if(!empty($username) && !empty($password)) {
if($username == $dbusername && $password == $dbpassword) {
$_SESSION['username'] = $username;
header("Location: index.php?id=$username");
die();
}else {
echo 'incorrect username/password combination';
}
}else {
echo 'Username and Password NOT FOUND! ';
}
58if(isset($_GET['id'])){
echo 'Welcome '.$_GET['id'];
}else {
echo '(write) a 404 page';
}
6if(isset($_SESSION['username'])){
echo "Welcome '{$_SESSION['username']}'";
}
44if(isset($_GET['id'])){
echo 'Welcome '.$_GET['id'];
}else {
echo '(write) a 404 page';
}
1<?php
if(!empty($username) && !empty($password)) {
if($username == $dbusername && $password == $dbpassword) {
$_SESSION['username'] = $username;
header("Location: index.php?id=$username");
die();
}else {
echo 'incorrect username/password combination';
}
}else {
echo 'Username and Password NOT FOUND! ';
}
68 <?php
if(!empty($username) && !empty($password)) {
if($username == $dbusername && $password == $dbpassword) {
$_SESSION['username'] = $username;
header("Location: index.php?id=$username");
die();
}else {
echo 'incorrect username/password combination';
}
}else {
echo 'Username and Password NOT FOUND! ';
}
08if(isset($_GET['id'])){
echo 'Welcome '.$_GET['id'];
}else {
echo '(write) a 404 page';
}
4__if(isset($_GET['id'])){
echo 'Welcome '.$_GET['id'];
}else {
echo '(write) a 404 page';
}
23<?php
if(!empty($username) && !empty($password)) {
if($username == $dbusername && $password == $dbpassword) {
$_SESSION['username'] = $username;
header("Location: index.php?id=$username");
die();
}else {
echo 'incorrect username/password combination';
}
}else {
echo 'Username and Password NOT FOUND! ';
}
72if(isset($_GET['id'])){
echo 'Welcome '.$_GET['id'];
}else {
echo '(write) a 404 page';
}
4if(isset($_GET['id'])){
echo 'Welcome '.$_GET['id'];
}else {
echo '(write) a 404 page';
}
26if(isset($_GET['id'])){
echo 'Welcome '.$_GET['id'];
}else {
echo '(write) a 404 page';
}
6if(isset($_SESSION['username'])){
echo "Welcome '{$_SESSION['username']}'";
}
27if(isset($_GET['id'])){
echo 'Welcome '.$_GET['id'];
}else {
echo '(write) a 404 page';
}
29if(isset($_SESSION['username'])){
echo "Welcome '{$_SESSION['username']}'";
}
44Welcome 'username'3if(isset($_GET['id'])){
echo 'Welcome '.$_GET['id'];
}else {
echo '(write) a 404 page';
}
16if(isset($_GET['id'])){
echo 'Welcome '.$_GET['id'];
}else {
echo '(write) a 404 page';
}
6if(isset($_GET['id'])){
echo 'Welcome '.$_GET['id'];
}else {
echo '(write) a 404 page';
}
7Welcome 'username'3if(isset($_GET['id'])){
echo 'Welcome '.$_GET['id'];
}else {
echo '(write) a 404 page';
}
2if(isset($_GET['id'])){
echo 'Welcome '.$_GET['id'];
}else {
echo '(write) a 404 page';
}
6if(isset($_GET['id'])){
echo 'Welcome '.$_GET['id'];
}else {
echo '(write) a 404 page';
}
1GET2if(isset($_GET['id'])){
echo 'Welcome '.$_GET['id'];
}else {
echo '(write) a 404 page';
}
6if(isset($_SESSION['username'])){
echo "Welcome '{$_SESSION['username']}'";
}
44if(isset($_GET['id'])){
echo 'Welcome '.$_GET['id'];
}else {
echo '(write) a 404 page';
}
42Các if(isset($_SESSION['username'])){
echo "Welcome '{$_SESSION['username']}'";
}
27if(isset($_GET['id'])){
echo 'Welcome '.$_GET['id'];
}else {
echo '(write) a 404 page';
}
51if(isset($_SESSION['username'])){
echo "Welcome '{$_SESSION['username']}'";
}
44Welcome 'username'3if(isset($_GET['id'])){
echo 'Welcome '.$_GET['id'];
}else {
echo '(write) a 404 page';
}
45if(isset($_GET['id'])){
echo 'Welcome '.$_GET['id'];
}else {
echo '(write) a 404 page';
}
6if(isset($_GET['id'])){
echo 'Welcome '.$_GET['id'];
}else {
echo '(write) a 404 page';
}
7Welcome 'username'3GET2if(isset($_GET['id'])){
echo 'Welcome '.$_GET['id'];
}else {
echo '(write) a 404 page';
}
6header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
4Welcome 'username'3<?php
if(!empty($username) && !empty($password)) {
if($username == $dbusername && $password == $dbpassword) {
$_SESSION['username'] = $username;
header("Location: index.php?id=$username");
die();
}else {
echo 'incorrect username/password combination';
}
}else {
echo 'Username and Password NOT FOUND! ';
}
41if(isset($_GET['id'])){
echo 'Welcome '.$_GET['id'];
}else {
echo '(write) a 404 page';
}
6Welcome 'username'3
<?php
if(!empty($username) && !empty($password)) {
if($username == $dbusername && $password == $dbpassword) {
$_SESSION['username'] = $username;
header("Location: index.php?id=$username");
die();
}else {
echo 'incorrect username/password combination';
}
}else {
echo 'Username and Password NOT FOUND! ';
}
20if(isset($_GET['id'])){
echo 'Welcome '.$_GET['id'];
}else {
echo '(write) a 404 page';
}
6Welcome 'username'3
if(isset($_SESSION['username'])){
echo "Welcome '{$_SESSION['username']}'";
}
85if(isset($_GET['id'])){
echo 'Welcome '.$_GET['id'];
}else {
echo '(write) a 404 page';
}
6if(isset($_SESSION['username'])){
echo "Welcome '{$_SESSION['username']}'";
}
44if(isset($_GET['id'])){
echo 'Welcome '.$_GET['id'];
}else {
echo '(write) a 404 page';
}
1if(isset($_GET['id'])){
echo 'Welcome '.$_GET['id'];
}else {
echo '(write) a 404 page';
}
16 <?php
if(!empty($username) && !empty($password)) {
if($username == $dbusername && $password == $dbpassword) {
$_SESSION['username'] = $username;
header("Location: index.php?id=$username");
die();
}else {
echo 'incorrect username/password combination';
}
}else {
echo 'Username and Password NOT FOUND! ';
}
08if(isset($_GET['id'])){
echo 'Welcome '.$_GET['id'];
}else {
echo '(write) a 404 page';
}
4if(isset($_GET['id'])){
echo 'Welcome '.$_GET['id'];
}else {
echo '(write) a 404 page';
}
19 if(isset($_GET['id'])){
echo 'Welcome '.$_GET['id'];
}else {
echo '(write) a 404 page';
}
3if(isset($_GET['id'])){
echo 'Welcome '.$_GET['id'];
}else {
echo '(write) a 404 page';
}
4if(isset($_GET['id'])){
echo 'Welcome '.$_GET['id'];
}else {
echo '(write) a 404 page';
}
22 Login page of the system. The user has to enter the username and password to successfully log in. After the login button is pressed, the login code written in the server.php page is run, which does all the backend
work, like checking whether the username and password match or not.
register.php
if(isset($_SESSION['username'])){
echo "Welcome '{$_SESSION['username']}'";
}
44if(isset($_GET['id'])){
echo 'Welcome '.$_GET['id'];
}else {
echo '(write) a 404 page';
}
1if(isset($_GET['id'])){
echo 'Welcome '.$_GET['id'];
}else {
echo '(write) a 404 page';
}
45 <?php
if(!empty($username) && !empty($password)) {
if($username == $dbusername && $password == $dbpassword) {
$_SESSION['username'] = $username;
header("Location: index.php?id=$username");
die();
}else {
echo 'incorrect username/password combination';
}
}else {
echo 'Username and Password NOT FOUND! ';
}
12if(isset($_GET['id'])){
echo 'Welcome '.$_GET['id'];
}else {
echo '(write) a 404 page';
}
4if(isset($_GET['id'])){
echo 'Welcome '.$_GET['id'];
}else {
echo '(write) a 404 page';
}
48if(isset($_GET['id'])){
echo 'Welcome '.$_GET['id'];
}else {
echo '(write) a 404 page';
}
6if(isset($_GET['id'])){
echo 'Welcome '.$_GET['id'];
}else {
echo '(write) a 404 page';
}
70if(isset($_GET['id'])){
echo 'Welcome '.$_GET['id'];
}else {
echo '(write) a 404 page';
}
71header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
53if(isset($_GET['id'])){
echo 'Welcome '.$_GET['id'];
}else {
echo '(write) a 404 page';
}
73if(isset($_GET['id'])){
echo 'Welcome '.$_GET['id'];
}else {
echo '(write) a 404 page';
}
74if(isset($_SESSION['username'])){
echo "Welcome '{$_SESSION['username']}'";
}
83if(isset($_GET['id'])){
echo 'Welcome '.$_GET['id'];
}else {
echo '(write) a 404 page';
}
76if(isset($_GET['id'])){
echo 'Welcome '.$_GET['id'];
}else {
echo '(write) a 404 page';
}
77header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
4if(isset($_GET['id'])){
echo 'Welcome '.$_GET['id'];
}else {
echo '(write) a 404 page';
}
79Giải thích: Trang đăng nhập của hệ thống. Người dùng phải nhập tên người dùng và mật khẩu để đăng nhập thành công. Sau khi nhấn nút đăng nhập, mã đăng nhập được ghi trong trang server.php được chạy, tất cả các phụ trợ hoạt động, như kiểm tra xem tên người dùng và mật khẩu có khớp hoặc không.register.php & nbsp; & nbsp; header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
4if(isset($_GET['id'])){
echo 'Welcome '.$_GET['id'];
}else {
echo '(write) a 404 page';
}
85PHP if(isset($_GET['id'])){
echo 'Welcome '.$_GET['id'];
}else {
echo '(write) a 404 page';
}
91if(isset($_GET['id'])){
echo 'Welcome '.$_GET['id'];
}else {
echo '(write) a 404 page';
}
92<?php
if(!empty($username) && !empty($password)) {
if($username == $dbusername && $password == $dbpassword) {
$_SESSION['username'] = $username;
header("Location: index.php?id=$username");
die();
}else {
echo 'incorrect username/password combination';
}
}else {
echo 'Username and Password NOT FOUND! ';
}
14if(isset($_GET['id'])){
echo 'Welcome '.$_GET['id'];
}else {
echo '(write) a 404 page';
}
6if(isset($_GET['id'])){
echo 'Welcome '.$_GET['id'];
}else {
echo '(write) a 404 page';
}
95if(isset($_GET['id'])){
echo 'Welcome '.$_GET['id'];
}else {
echo '(write) a 404 page';
}
96if(isset($_GET['id'])){
echo 'Welcome '.$_GET['id'];
}else {
echo '(write) a 404 page';
}
7if(isset($_GET['id'])){
echo 'Welcome '.$_GET['id'];
}else {
echo '(write) a 404 page';
}
81if(isset($_GET['id'])){
echo 'Welcome '.$_GET['id'];
}else {
echo '(write) a 404 page';
}
82 if(isset($_GET['id'])){
echo 'Welcome '.$_GET['id'];
}else {
echo '(write) a 404 page';
}
83if(isset($_GET['id'])){
echo 'Welcome '.$_GET['id'];
}else {
echo '(write) a 404 page';
}
7GET04header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
4GET06header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
4if(isset($_GET['id'])){
echo 'Welcome '.$_GET['id'];
}else {
echo '(write) a 404 page';
}
87<?php
if(!empty($username) && !empty($password)) {
if($username == $dbusername && $password == $dbpassword) {
$_SESSION['username'] = $username;
header("Location: index.php?id=$username");
die();
}else {
echo 'incorrect username/password combination';
}
}else {
echo 'Username and Password NOT FOUND! ';
}
07 if(isset($_GET['id'])){
echo 'Welcome '.$_GET['id'];
}else {
echo '(write) a 404 page';
}
89<?php
if(!empty($username) && !empty($password)) {
if($username == $dbusername && $password == $dbpassword) {
$_SESSION['username'] = $username;
header("Location: index.php?id=$username");
die();
}else {
echo 'incorrect username/password combination';
}
}else {
echo 'Username and Password NOT FOUND! ';
}
10if(isset($_GET['id'])){
echo 'Welcome '.$_GET['id'];
}else {
echo '(write) a 404 page';
}
7if(isset($_GET['id'])){
echo 'Welcome '.$_GET['id'];
}else {
echo '(write) a 404 page';
}
70if(isset($_GET['id'])){
echo 'Welcome '.$_GET['id'];
}else {
echo '(write) a 404 page';
}
71header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
53GET17GET18if(isset($_GET['id'])){
echo 'Welcome '.$_GET['id'];
}else {
echo '(write) a 404 page';
}
7if(isset($_GET['id'])){
echo 'Welcome '.$_GET['id'];
}else {
echo '(write) a 404 page';
}
98if(isset($_GET['id'])){
echo 'Welcome '.$_GET['id'];
}else {
echo '(write) a 404 page';
}
3if(isset($_GET['id'])){
echo 'Welcome '.$_GET['id'];
}else {
echo '(write) a 404 page';
}
4<?php
if(!empty($username) && !empty($password)) {
if($username == $dbusername && $password == $dbpassword) {
$_SESSION['username'] = $username;
header("Location: index.php?id=$username");
die();
}else {
echo 'incorrect username/password combination';
}
}else {
echo 'Username and Password NOT FOUND! ';
}
58if(isset($_GET['id'])){
echo 'Welcome '.$_GET['id'];
}else {
echo '(write) a 404 page';
}
6if(isset($_SESSION['username'])){
echo "Welcome '{$_SESSION['username']}'";
}
44GET26header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
4if(isset($_GET['id'])){
echo 'Welcome '.$_GET['id'];
}else {
echo '(write) a 404 page';
}
98if(isset($_GET['id'])){
echo 'Welcome '.$_GET['id'];
}else {
echo '(write) a 404 page';
}
3if(isset($_GET['id'])){
echo 'Welcome '.$_GET['id'];
}else {
echo '(write) a 404 page';
}
4<?php
if(!empty($username) && !empty($password)) {
if($username == $dbusername && $password == $dbpassword) {
$_SESSION['username'] = $username;
header("Location: index.php?id=$username");
die();
}else {
echo 'incorrect username/password combination';
}
}else {
echo 'Username and Password NOT FOUND! ';
}
27if(isset($_GET['id'])){
echo 'Welcome '.$_GET['id'];
}else {
echo '(write) a 404 page';
}
6if(isset($_SESSION['username'])){
echo "Welcome '{$_SESSION['username']}'";
}
27GET33GET34if(isset($_GET['id'])){
echo 'Welcome '.$_GET['id'];
}else {
echo '(write) a 404 page';
}
6if(isset($_GET['id'])){
echo 'Welcome '.$_GET['id'];
}else {
echo '(write) a 404 page';
}
7GET06if(isset($_GET['id'])){
echo 'Welcome '.$_GET['id'];
}else {
echo '(write) a 404 page';
}
7if(isset($_GET['id'])){
echo 'Welcome '.$_GET['id'];
}else {
echo '(write) a 404 page';
}
98if(isset($_GET['id'])){
echo 'Welcome '.$_GET['id'];
}else {
echo '(write) a 404 page';
}
3if(isset($_GET['id'])){
echo 'Welcome '.$_GET['id'];
}else {
echo '(write) a 404 page';
}
4<?php
if(!empty($username) && !empty($password)) {
if($username == $dbusername && $password == $dbpassword) {
$_SESSION['username'] = $username;
header("Location: index.php?id=$username");
die();
}else {
echo 'incorrect username/password combination';
}
}else {
echo 'Username and Password NOT FOUND! ';
}
58if(isset($_GET['id'])){
echo 'Welcome '.$_GET['id'];
}else {
echo '(write) a 404 page';
}
6if(isset($_SESSION['username'])){
echo "Welcome '{$_SESSION['username']}'";
}
44GET45header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
4GET08<?php
if(!empty($username) && !empty($password)) {
if($username == $dbusername && $password == $dbpassword) {
$_SESSION['username'] = $username;
header("Location: index.php?id=$username");
die();
}else {
echo 'incorrect username/password combination';
}
}else {
echo 'Username and Password NOT FOUND! ';
}
44 GET10if(isset($_GET['id'])){
echo 'Welcome '.$_GET['id'];
}else {
echo '(write) a 404 page';
}
48if(isset($_GET['id'])){
echo 'Welcome '.$_GET['id'];
}else {
echo '(write) a 404 page';
}
6if(isset($_SESSION['username'])){
echo "Welcome '{$_SESSION['username']}'";
}
44GET28<?php
if(!empty($username) && !empty($password)) {
if($username == $dbusername && $password == $dbpassword) {
$_SESSION['username'] = $username;
header("Location: index.php?id=$username");
die();
}else {
echo 'incorrect username/password combination';
}
}else {
echo 'Username and Password NOT FOUND! ';
}
71 GET30<?php
if(!empty($username) && !empty($password)) {
if($username == $dbusername && $password == $dbpassword) {
$_SESSION['username'] = $username;
header("Location: index.php?id=$username");
die();
}else {
echo 'incorrect username/password combination';
}
}else {
echo 'Username and Password NOT FOUND! ';
}
74if(isset($_GET['id'])){
echo 'Welcome '.$_GET['id'];
}else {
echo '(write) a 404 page';
}
7GET06if(isset($_GET['id'])){
echo 'Welcome '.$_GET['id'];
}else {
echo '(write) a 404 page';
}
7if(isset($_GET['id'])){
echo 'Welcome '.$_GET['id'];
}else {
echo '(write) a 404 page';
}
98if(isset($_GET['id'])){
echo 'Welcome '.$_GET['id'];
}else {
echo '(write) a 404 page';
}
3if(isset($_GET['id'])){
echo 'Welcome '.$_GET['id'];
}else {
echo '(write) a 404 page';
}
4<?php
if(!empty($username) && !empty($password)) {
if($username == $dbusername && $password == $dbpassword) {
$_SESSION['username'] = $username;
header("Location: index.php?id=$username");
die();
}else {
echo 'incorrect username/password combination';
}
}else {
echo 'Username and Password NOT FOUND! ';
}
58if(isset($_GET['id'])){
echo 'Welcome '.$_GET['id'];
}else {
echo '(write) a 404 page';
}
6if(isset($_SESSION['username'])){
echo "Welcome '{$_SESSION['username']}'";
}
44GET64if(isset($_SESSION['username'])){
echo "Welcome '{$_SESSION['username']}'";
}
44GET28GET48 GET30GET48if(isset($_GET['id'])){
echo 'Welcome '.$_GET['id'];
}else {
echo '(write) a 404 page';
}
7GET06if(isset($_GET['id'])){
echo 'Welcome '.$_GET['id'];
}else {
echo '(write) a 404 page';
}
7if(isset($_GET['id'])){
echo 'Welcome '.$_GET['id'];
}else {
echo '(write) a 404 page';
}
98if(isset($_GET['id'])){
echo 'Welcome '.$_GET['id'];
}else {
echo '(write) a 404 page';
}
3if(isset($_GET['id'])){
echo 'Welcome '.$_GET['id'];
}else {
echo '(write) a 404 page';
}
4<?php
if(!empty($username) && !empty($password)) {
if($username == $dbusername && $password == $dbpassword) {
$_SESSION['username'] = $username;
header("Location: index.php?id=$username");
die();
}else {
echo 'incorrect username/password combination';
}
}else {
echo 'Username and Password NOT FOUND! ';
}
58if(isset($_GET['id'])){
echo 'Welcome '.$_GET['id'];
}else {
echo '(write) a 404 page';
}
6if(isset($_SESSION['username'])){
echo "Welcome '{$_SESSION['username']}'";
}
44GET80if(isset($_SESSION['username'])){
echo "Welcome '{$_SESSION['username']}'";
}
27GET33GET53if(isset($_GET['id'])){
echo 'Welcome '.$_GET['id'];
}else {
echo '(write) a 404 page';
}
6if(isset($_GET['id'])){
echo 'Welcome '.$_GET['id'];
}else {
echo '(write) a 404 page';
}
7GET06if(isset($_GET['id'])){
echo 'Welcome '.$_GET['id'];
}else {
echo '(write) a 404 page';
}
7if(isset($_GET['id'])){
echo 'Welcome '.$_GET['id'];
}else {
echo '(write) a 404 page';
}
98if(isset($_GET['id'])){
echo 'Welcome '.$_GET['id'];
}else {
echo '(write) a 404 page';
}
3if(isset($_GET['id'])){
echo 'Welcome '.$_GET['id'];
}else {
echo '(write) a 404 page';
}
4<?php
if(!empty($username) && !empty($password)) {
if($username == $dbusername && $password == $dbpassword) {
$_SESSION['username'] = $username;
header("Location: index.php?id=$username");
die();
}else {
echo 'incorrect username/password combination';
}
}else {
echo 'Username and Password NOT FOUND! ';
}
58if(isset($_GET['id'])){
echo 'Welcome '.$_GET['id'];
}else {
echo '(write) a 404 page';
}
6if(isset($_SESSION['username'])){
echo "Welcome '{$_SESSION['username']}'";
}
44GET28<?php
if(!empty($username) && !empty($password)) {
if($username == $dbusername && $password == $dbpassword) {
$_SESSION['username'] = $username;
header("Location: index.php?id=$username");
die();
}else {
echo 'incorrect username/password combination';
}
}else {
echo 'Username and Password NOT FOUND! ';
}
98 GET30GET69if(isset($_GET['id'])){
echo 'Welcome '.$_GET['id'];
}else {
echo '(write) a 404 page';
}
6Welcome 'username'01GET30Welcome 'username'03
if(isset($_GET['id'])){
echo 'Welcome '.$_GET['id'];
}else {
echo '(write) a 404 page';
}
6if(isset($_SESSION['username'])){
echo "Welcome '{$_SESSION['username']}'";
}
44GET28<?php
if(!empty($username) && !empty($password)) {
if($username == $dbusername && $password == $dbpassword) {
$_SESSION['username'] = $username;
header("Location: index.php?id=$username");
die();
}else {
echo 'incorrect username/password combination';
}
}else {
echo 'Username and Password NOT FOUND! ';
}
98 GET30GET85if(isset($_GET['id'])){
echo 'Welcome '.$_GET['id'];
}else {
echo '(write) a 404 page';
}
6if(isset($_SESSION['username'])){
echo "Welcome '{$_SESSION['username']}'";
}
44Welcome 'username'08if(isset($_GET['id'])){
echo 'Welcome '.$_GET['id'];
}else {
echo '(write) a 404 page';
}
7GET06Welcome 'username'11
if(isset($_SESSION['username'])){
echo "Welcome '{$_SESSION['username']}'";
}
44Welcome 'username'13if(isset($_SESSION['username'])){
echo "Welcome '{$_SESSION['username']}'";
}
44Welcome 'username'15<?php
if(!empty($username) && !empty($password)) {
if($username == $dbusername && $password == $dbpassword) {
$_SESSION['username'] = $username;
header("Location: index.php?id=$username");
die();
}else {
echo 'incorrect username/password combination';
}
}else {
echo 'Username and Password NOT FOUND! ';
}
47if(isset($_GET['id'])){
echo 'Welcome '.$_GET['id'];
}else {
echo '(write) a 404 page';
}
6if(isset($_SESSION['username'])){
echo "Welcome '{$_SESSION['username']}'";
}
27Welcome 'username'19if(isset($_SESSION['username'])){
echo "Welcome '{$_SESSION['username']}'";
}
44Welcome 'username'21if(isset($_GET['id'])){
echo 'Welcome '.$_GET['id'];
}else {
echo '(write) a 404 page';
}
7Welcome 'username'23header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
4Welcome 'username'25Welcome 'username'26
Welcome 'username'27
if(isset($_SESSION['username'])){
echo "Welcome '{$_SESSION['username']}'";
}
44GET96if(isset($_GET['id'])){
echo 'Welcome '.$_GET['id'];
}else {
echo '(write) a 404 page';
}
19 if(isset($_GET['id'])){
echo 'Welcome '.$_GET['id'];
}else {
echo '(write) a 404 page';
}
3if(isset($_GET['id'])){
echo 'Welcome '.$_GET['id'];
}else {
echo '(write) a 404 page';
}
4if(isset($_GET['id'])){
echo 'Welcome '.$_GET['id'];
}else {
echo '(write) a 404 page';
}
22 This page contains the HTML coding of the registration page. The ‘server.php’, and ‘errors.php’ pages are included in lines 01 and 15 respectively. This is necessary to make the backend of the registration
system work. The user is asked to enter the username, email, and password to create an account. After the input fields are filled, the data entered is sent to the database table.
index.php
HTML<?php
if(!empty($username) && !empty($password)) {
if($username == $dbusername && $password == $dbpassword) {
$_SESSION['username'] = $username;
header("Location: index.php?id=$username");
die();
}else {
echo 'incorrect username/password combination';
}
}else {
echo 'Username and Password NOT FOUND! ';
}
7<?php
if(!empty($username) && !empty($password)) {
if($username == $dbusername && $password == $dbpassword) {
$_SESSION['username'] = $username;
header("Location: index.php?id=$username");
die();
}else {
echo 'incorrect username/password combination';
}
}else {
echo 'Username and Password NOT FOUND! ';
}
8Welcome 'username'30
Welcome 'username'31
Welcome 'username'0
Welcome 'username'33
Welcome 'username'34
Welcome 'username'35
Welcome 'username'36
Welcome 'username'37
header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
4Welcome 'username'39header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
4Welcome 'username'41echo "Welcome '" . $username . "'";?>
<meta http-equiv="refresh" content="5; url=index.php" />
<?php
exit;#should be added so rest of page doesn't load.
05Welcome 'username'43
Welcome 'username'44
Welcome 'username'45
Welcome 'username'46
Welcome 'username'47
header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
4Welcome 'username'49header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
4Welcome 'username'51header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
4Welcome 'username'53echo "Welcome '" . $username . "'";?>
<meta http-equiv="refresh" content="5; url=index.php" />
<?php
exit;#should be added so rest of page doesn't load.
05if(isset($_SESSION['username'])){
echo "Welcome '{$_SESSION['username']}'";
}
79if(isset($_SESSION['username'])){
echo "Welcome '{$_SESSION['username']}'";
}
83if(isset($_GET['id'])){
echo 'Welcome '.$_GET['id'];
}else {
echo '(write) a 404 page';
}
1if(isset($_SESSION['username'])){
echo "Welcome '{$_SESSION['username']}'";
}
85if(isset($_GET['id'])){
echo 'Welcome '.$_GET['id'];
}else {
echo '(write) a 404 page';
}
6if(isset($_GET['id'])){
echo 'Welcome '.$_GET['id'];
}else {
echo '(write) a 404 page';
}
1if(isset($_SESSION['username'])){
echo "Welcome '{$_SESSION['username']}'";
}
88if(isset($_GET['id'])){
echo 'Welcome '.$_GET['id'];
}else {
echo '(write) a 404 page';
}
6header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
4if(isset($_GET['id'])){
echo 'Welcome '.$_GET['id'];
}else {
echo '(write) a 404 page';
}
1if(isset($_SESSION['username'])){
echo "Welcome '{$_SESSION['username']}'";
}
92Welcome 'username'66if(isset($_SESSION['username'])){
echo "Welcome '{$_SESSION['username']}'";
}
92if(isset($_GET['id'])){
echo 'Welcome '.$_GET['id'];
}else {
echo '(write) a 404 page';
}
6header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
4if(isset($_GET['id'])){
echo 'Welcome '.$_GET['id'];
}else {
echo '(write) a 404 page';
}
1<?php
if(!empty($username) && !empty($password)) {
if($username == $dbusername && $password == $dbpassword) {
$_SESSION['username'] = $username;
header("Location: index.php?id=$username");
die();
}else {
echo 'incorrect username/password combination';
}
}else {
echo 'Username and Password NOT FOUND! ';
}
04 <?php
if(!empty($username) && !empty($password)) {
if($username == $dbusername && $password == $dbpassword) {
$_SESSION['username'] = $username;
header("Location: index.php?id=$username");
die();
}else {
echo 'incorrect username/password combination';
}
}else {
echo 'Username and Password NOT FOUND! ';
}
05if(isset($_GET['id'])){
echo 'Welcome '.$_GET['id'];
}else {
echo '(write) a 404 page';
}
4<?php
if(!empty($username) && !empty($password)) {
if($username == $dbusername && $password == $dbpassword) {
$_SESSION['username'] = $username;
header("Location: index.php?id=$username");
die();
}else {
echo 'incorrect username/password combination';
}
}else {
echo 'Username and Password NOT FOUND! ';
}
07 <?php
if(!empty($username) && !empty($password)) {
if($username == $dbusername && $password == $dbpassword) {
$_SESSION['username'] = $username;
header("Location: index.php?id=$username");
die();
}else {
echo 'incorrect username/password combination';
}
}else {
echo 'Username and Password NOT FOUND! ';
}
08if(isset($_GET['id'])){
echo 'Welcome '.$_GET['id'];
}else {
echo '(write) a 404 page';
}
4<?php
if(!empty($username) && !empty($password)) {
if($username == $dbusername && $password == $dbpassword) {
$_SESSION['username'] = $username;
header("Location: index.php?id=$username");
die();
}else {
echo 'incorrect username/password combination';
}
}else {
echo 'Username and Password NOT FOUND! ';
}
10if(isset($_GET['id'])){
echo 'Welcome '.$_GET['id'];
}else {
echo '(write) a 404 page';
}
91<?php
if(!empty($username) && !empty($password)) {
if($username == $dbusername && $password == $dbpassword) {
$_SESSION['username'] = $username;
header("Location: index.php?id=$username");
die();
}else {
echo 'incorrect username/password combination';
}
}else {
echo 'Username and Password NOT FOUND! ';
}
12if(isset($_GET['id'])){
echo 'Welcome '.$_GET['id'];
}else {
echo '(write) a 404 page';
}
4<?php
if(!empty($username) && !empty($password)) {
if($username == $dbusername && $password == $dbpassword) {
$_SESSION['username'] = $username;
header("Location: index.php?id=$username");
die();
}else {
echo 'incorrect username/password combination';
}
}else {
echo 'Username and Password NOT FOUND! ';
}
14if(isset($_GET['id'])){
echo 'Welcome '.$_GET['id'];
}else {
echo '(write) a 404 page';
}
6Welcome 'username'3
if(isset($_SESSION['username'])){
echo "Welcome '{$_SESSION['username']}'";
}
88if(isset($_GET['id'])){
echo 'Welcome '.$_GET['id'];
}else {
echo '(write) a 404 page';
}
6if(isset($_GET['id'])){
echo 'Welcome '.$_GET['id'];
}else {
echo '(write) a 404 page';
}
1<?php
if(!empty($username) && !empty($password)) {
if($username == $dbusername && $password == $dbpassword) {
$_SESSION['username'] = $username;
header("Location: index.php?id=$username");
die();
}else {
echo 'incorrect username/password combination';
}
}else {
echo 'Username and Password NOT FOUND! ';
}
20if(isset($_GET['id'])){
echo 'Welcome '.$_GET['id'];
}else {
echo '(write) a 404 page';
}
6header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
4if(isset($_GET['id'])){
echo 'Welcome '.$_GET['id'];
}else {
echo '(write) a 404 page';
}
1if(isset($_GET['id'])){
echo 'Welcome '.$_GET['id'];
}else {
echo '(write) a 404 page';
}
2 if(isset($_GET['id'])){
echo 'Welcome '.$_GET['id'];
}else {
echo '(write) a 404 page';
}
3if(isset($_GET['id'])){
echo 'Welcome '.$_GET['id'];
}else {
echo '(write) a 404 page';
}
4<?php
if(!empty($username) && !empty($password)) {
if($username == $dbusername && $password == $dbpassword) {
$_SESSION['username'] = $username;
header("Location: index.php?id=$username");
die();
}else {
echo 'incorrect username/password combination';
}
}else {
echo 'Username and Password NOT FOUND! ';
}
27if(isset($_GET['id'])){
echo 'Welcome '.$_GET['id'];
}else {
echo '(write) a 404 page';
}
6if(isset($_GET['id'])){
echo 'Welcome '.$_GET['id'];
}else {
echo '(write) a 404 page';
}
7if(isset($_GET['id'])){
echo 'Welcome '.$_GET['id'];
}else {
echo '(write) a 404 page';
}
1<?php
if(!empty($username) && !empty($password)) {
if($username == $dbusername && $password == $dbpassword) {
$_SESSION['username'] = $username;
header("Location: index.php?id=$username");
die();
}else {
echo 'incorrect username/password combination';
}
}else {
echo 'Username and Password NOT FOUND! ';
}
31Welcome 'username'99<?php
if(!empty($username) && !empty($password)) {
if($username == $dbusername && $password == $dbpassword) {
$_SESSION['username'] = $username;
header("Location: index.php?id=$username");
die();
}else {
echo 'incorrect username/password combination';
}
}else {
echo 'Username and Password NOT FOUND! ';
}
31if(isset($_GET['id'])){
echo 'Welcome '.$_GET['id'];
}else {
echo '(write) a 404 page';
}
6header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
4Welcome 'username'3if(isset($_GET['id'])){
echo 'Welcome '.$_GET['id'];
}else {
echo '(write) a 404 page';
}
2if(isset($_GET['id'])){
echo 'Welcome '.$_GET['id'];
}else {
echo '(write) a 404 page';
}
6header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
4if(isset($_GET['id'])){
echo 'Welcome '.$_GET['id'];
}else {
echo '(write) a 404 page';
}
1if(isset($_GET['id'])){
echo 'Welcome '.$_GET['id'];
}else {
echo '(write) a 404 page';
}
2 if(isset($_GET['id'])){
echo 'Welcome '.$_GET['id'];
}else {
echo '(write) a 404 page';
}
3if(isset($_GET['id'])){
echo 'Welcome '.$_GET['id'];
}else {
echo '(write) a 404 page';
}
4Welcome 'username'11if(isset($_GET['id'])){
echo 'Welcome '.$_GET['id'];
}else {
echo '(write) a 404 page';
}
6if(isset($_GET['id'])){
echo 'Welcome '.$_GET['id'];
}else {
echo '(write) a 404 page';
}
7<?php
if(!empty($username) && !empty($password)) {
if($username == $dbusername && $password == $dbpassword) {
$_SESSION['username'] = $username;
header("Location: index.php?id=$username");
die();
}else {
echo 'incorrect username/password combination';
}
}else {
echo 'Username and Password NOT FOUND! ';
}
7<?php
if(!empty($username) && !empty($password)) {
if($username == $dbusername && $password == $dbpassword) {
$_SESSION['username'] = $username;
header("Location: index.php?id=$username");
die();
}else {
echo 'incorrect username/password combination';
}
}else {
echo 'Username and Password NOT FOUND! ';
}
8 Welcome 'username'16if(isset($_SESSION['username'])){
echo "Welcome '{$_SESSION['username']}'";
}
44if(isset($_GET['id'])){
echo 'Welcome '.$_GET['id'];
}else {
echo '(write) a 404 page';
}
1if(isset($_GET['id'])){
echo 'Welcome '.$_GET['id'];
}else {
echo '(write) a 404 page';
}
2 if(isset($_GET['id'])){
echo 'Welcome '.$_GET['id'];
}else {
echo '(write) a 404 page';
}
3if(isset($_GET['id'])){
echo 'Welcome '.$_GET['id'];
}else {
echo '(write) a 404 page';
}
4Welcome 'username'22 if(isset($_GET['id'])){
echo 'Welcome '.$_GET['id'];
}else {
echo '(write) a 404 page';
}
6if(isset($_SESSION['username'])){
echo "Welcome '{$_SESSION['username']}'";
}
27if(isset($_GET['id'])){
echo 'Welcome '.$_GET['id'];
}else {
echo '(write) a 404 page';
}
1Welcome 'username'26if(isset($_GET['id'])){
echo 'Welcome '.$_GET['id'];
}else {
echo '(write) a 404 page';
}
6if(isset($_GET['id'])){
echo 'Welcome '.$_GET['id'];
}else {
echo '(write) a 404 page';
}
91<?php
if(!empty($username) && !empty($password)) {
if($username == $dbusername && $password == $dbpassword) {
$_SESSION['username'] = $username;
header("Location: index.php?id=$username");
die();
}else {
echo 'incorrect username/password combination';
}
}else {
echo 'Username and Password NOT FOUND! ';
}
7<?php
if(!empty($username) && !empty($password)) {
if($username == $dbusername && $password == $dbpassword) {
$_SESSION['username'] = $username;
header("Location: index.php?id=$username");
die();
}else {
echo 'incorrect username/password combination';
}
}else {
echo 'Username and Password NOT FOUND! ';
}
8if(isset($_GET['id'])){
echo 'Welcome '.$_GET['id'];
}else {
echo '(write) a 404 page';
}
23Welcome 'username'32if(isset($_GET['id'])){
echo 'Welcome '.$_GET['id'];
}else {
echo '(write) a 404 page';
}
23Welcome 'username'34if(isset($_GET['id'])){
echo 'Welcome '.$_GET['id'];
}else {
echo '(write) a 404 page';
}
91if(isset($_SESSION['username'])){
echo "Welcome '{$_SESSION['username']}'";
}
79if(isset($_SESSION['username'])){
echo "Welcome '{$_SESSION['username']}'";
}
27Welcome 'username'3Welcome 'username'26if(isset($_GET['id'])){
echo 'Welcome '.$_GET['id'];
}else {
echo '(write) a 404 page';
}
6if(isset($_SESSION['username'])){
echo "Welcome '{$_SESSION['username']}'";
}
444__73if(isset($_GET['id'])){
echo 'Welcome '.$_GET['id'];
}else {
echo '(write) a 404 page';
}
225if(isset($_GET['id'])){
echo 'Welcome '.$_GET['id'];
}else {
echo '(write) a 404 page';
}
7<?php
if(!empty($username) && !empty($password)) {
if($username == $dbusername && $password == $dbpassword) {
$_SESSION['username'] = $username;
header("Location: index.php?id=$username");
die();
}else {
echo 'incorrect username/password combination';
}
}else {
echo 'Username and Password NOT FOUND! ';
}
7<?php
if(!empty($username) && !empty($password)) {
if($username == $dbusername && $password == $dbpassword) {
$_SESSION['username'] = $username;
header("Location: index.php?id=$username");
die();
}else {
echo 'incorrect username/password combination';
}
}else {
echo 'Username and Password NOT FOUND! ';
}
8 Welcome 'username'8________ 57 ________ 47 ________ 48 & nbsp; Welcome 'username'52 if(isset($_GET['id'])){
echo 'Welcome '.$_GET['id'];
}else {
echo '(write) a 404 page';
}
1GET2if(isset($_GET['id'])){
echo 'Welcome '.$_GET['id'];
}else {
echo '(write) a 404 page';
}
6if(isset($_SESSION['username'])){
echo "Welcome '{$_SESSION['username']}'";
}
27Welcome 'username'57if(isset($_SESSION['username'])){
echo "Welcome '{$_SESSION['username']}'";
}
27if(isset($_GET['id'])){
echo 'Welcome '.$_GET['id'];
}else {
echo '(write) a 404 page';
}
1Welcome 'username'60if(isset($_GET['id'])){
echo 'Welcome '.$_GET['id'];
}else {
echo '(write) a 404 page';
}
6if(isset($_GET['id'])){
echo 'Welcome '.$_GET['id'];
}else {
echo '(write) a 404 page';
}
91<?php
if(!empty($username) && !empty($password)) {
if($username == $dbusername && $password == $dbpassword) {
$_SESSION['username'] = $username;
header("Location: index.php?id=$username");
die();
}else {
echo 'incorrect username/password combination';
}
}else {
echo 'Username and Password NOT FOUND! ';
}
7<?php
if(!empty($username) && !empty($password)) {
if($username == $dbusername && $password == $dbpassword) {
$_SESSION['username'] = $username;
header("Location: index.php?id=$username");
die();
}else {
echo 'incorrect username/password combination';
}
}else {
echo 'Username and Password NOT FOUND! ';
}
8 Welcome 'username'65if(isset($_SESSION['username'])){
echo "Welcome '{$_SESSION['username']}'";
}
27Welcome 'username'3Welcome 'username'60if(isset($_GET['id'])){
echo 'Welcome '.$_GET['id'];
}else {
echo '(write) a 404 page';
}
6if(isset($_SESSION['username'])){
echo "Welcome '{$_SESSION['username']}'";
}
44Welcome 'username'3GET2if(isset($_GET['id'])){
echo 'Welcome '.$_GET['id'];
}else {
echo '(write) a 404 page';
}
6if(isset($_GET['id'])){
echo 'Welcome '.$_GET['id'];
}else {
echo '(write) a 404 page';
}
1GET2if(isset($_GET['id'])){
echo 'Welcome '.$_GET['id'];
}else {
echo '(write) a 404 page';
}
6Các if(isset($_GET['id'])){
echo 'Welcome '.$_GET['id'];
}else {
echo '(write) a 404 page';
}
91Welcome 'username'88if(isset($_SESSION['username'])){
echo "Welcome '{$_SESSION['username']}'";
}
27Welcome 'username'3if(isset($_GET['id'])){
echo 'Welcome '.$_GET['id'];
}else {
echo '(write) a 404 page';
}
45if(isset($_GET['id'])){
echo 'Welcome '.$_GET['id'];
}else {
echo '(write) a 404 page';
}
6if(isset($_SESSION['username'])){
echo "Welcome '{$_SESSION['username']}'";
}
444____73GET2if(isset($_GET['id'])){
echo 'Welcome '.$_GET['id'];
}else {
echo '(write) a 404 page';
}
7<?php
if(!empty($username) && !empty($password)) {
if($username == $dbusername && $password == $dbpassword) {
$_SESSION['username'] = $username;
header("Location: index.php?id=$username");
die();
}else {
echo 'incorrect username/password combination';
}
}else {
echo 'Username and Password NOT FOUND! ';
}
7<?php
if(!empty($username) && !empty($password)) {
if($username == $dbusername && $password == $dbpassword) {
$_SESSION['username'] = $username;
header("Location: index.php?id=$username");
die();
}else {
echo 'incorrect username/password combination';
}
}else {
echo 'Username and Password NOT FOUND! ';
}
8 Welcome 'username'8header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
4Welcome 'username'3if(isset($_GET['id'])){
echo 'Welcome '.$_GET['id'];
}else {
echo '(write) a 404 page';
}
2if(isset($_GET['id'])){
echo 'Welcome '.$_GET['id'];
}else {
echo '(write) a 404 page';
}
6Welcome 'username'3
<?php
if(!empty($username) && !empty($password)) {
if($username == $dbusername && $password == $dbpassword) {
$_SESSION['username'] = $username;
header("Location: index.php?id=$username");
die();
}else {
echo 'incorrect username/password combination';
}
}else {
echo 'Username and Password NOT FOUND! ';
}
20if(isset($_GET['id'])){
echo 'Welcome '.$_GET['id'];
}else {
echo '(write) a 404 page';
}
6Welcome 'username'3
if(isset($_SESSION['username'])){
echo "Welcome '{$_SESSION['username']}'";
}
85if(isset($_GET['id'])){
echo 'Welcome '.$_GET['id'];
}else {
echo '(write) a 404 page';
}
6________ 57 ________ 47 ________ 48 & nbsp; Welcome 'username'52
Line 01 – 19: The username that was stored in the session variable is now displayed back to the user. This session variable can either be destroyed using unset($_SESSION[“products”]) or session_destroy(). However, session_destroy()
will destroy all the session variables at once. To destroy only the ‘username’ session variable, it will be better to unset the variable using unset($_SESSION[“products”]).
Line 34 – 42: This makes sure that this page is accessible only to those users that are logged in.
Line 45 – 50: This displays a personalized welcome message to the user once they log in.
CSS File
if(isset($_GET['id'])){
echo 'Welcome '.$_GET['id'];
}else {
echo '(write) a 404 page';
}
91<?php
if(!empty($username) && !empty($password)) {
if($username == $dbusername && $password == $dbpassword) {
$_SESSION['username'] = $username;
header("Location: index.php?id=$username");
die();
}else {
echo 'incorrect username/password combination';
}
}else {
echo 'Username and Password NOT FOUND! ';
}
7<?php
if(!empty($username) && !empty($password)) {
if($username == $dbusername && $password == $dbpassword) {
$_SESSION['username'] = $username;
header("Location: index.php?id=$username");
die();
}else {
echo 'incorrect username/password combination';
}
}else {
echo 'Username and Password NOT FOUND! ';
}
8 Welcome 'username'65session_start()11
header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
4session_start()13session_start()14session_start()15Welcome 'username'4header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
4session_start()18session_start()14session_start()15Welcome 'username'4echo "Welcome '" . $username . "'";?>
<meta http-equiv="refresh" content="5; url=index.php" />
<?php
exit;#should be added so rest of page doesn't load.
05session_start()23
header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
4session_start()25session_start()14session_start()27Welcome 'username'4header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
4session_start()30session_start()14session_start()32Welcome 'username'4echo "Welcome '" . $username . "'";?>
<meta http-equiv="refresh" content="5; url=index.php" />
<?php
exit;#should be added so rest of page doesn't load.
05session_start()35
header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
4session_start()37session_start()14session_start()39Welcome 'username'4Các header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
4session_start()49session_start()14session_start()51Welcome 'username'4header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
4session_start()30session_start()14session_start()56Welcome 'username'4if(isset($_SESSION['username'])){
echo "Welcome '{$_SESSION['username']}'";
}
444____73GET2Giải thích: & NBSP; Dòng 01 - 19: Tên người dùng được lưu trữ trong biến phiên hiện được hiển thị lại cho người dùng. Biến phiên này có thể bị phá hủy bằng cách sử dụng UNSET ($ _ Phiên [Sản phẩm trực tuyến]) hoặc session_destroy (). Tuy nhiên, session_destroy () sẽ phá hủy tất cả các biến phiên cùng một lúc. Để tiêu diệt chỉ biến phiên 'Tên người dùng', sẽ tốt hơn nếu giải quyết biến bằng cách sử dụng unset (phiên $ _ [Sản phẩm trực tuyến]). Dòng 34 - 42: Điều này đảm bảo rằng trang này chỉ có thể truy cập được cho những người dùng được ghi lại in.line 45 - 50: Điều này hiển thị thông báo chào mừng được cá nhân hóa cho người dùng sau khi họ đăng nhập tệp.css & nbsp; header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
4session_start()71session_start()14session_start()73Welcome 'username'4CSS header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
4session_start()18session_start()14session_start()85Welcome 'username'4echo "Welcome '" . $username . "'";?>
<meta http-equiv="refresh" content="5; url=index.php" />
<?php
exit;#should be added so rest of page doesn't load.
05session_start()88
header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
4session_start()37session_start()14session_start()39Welcome 'username'4header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
4session_start()13session_start()14session_start()44 session_start()45 session_start()15Welcome 'username'4header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
4session_start()18session_start()14session_start()85Welcome 'username'4Giải thích: & NBSP; Dòng 01 - 19: Tên người dùng được lưu trữ trong biến phiên hiện được hiển thị lại cho người dùng. Biến phiên này có thể bị phá hủy bằng cách sử dụng UNSET ($ _ Phiên [Sản phẩm trực tuyến]) hoặc session_destroy (). Tuy nhiên, session_destroy () sẽ phá hủy tất cả các biến phiên cùng một lúc. Để tiêu diệt chỉ biến phiên 'Tên người dùng', sẽ tốt hơn nếu giải quyết biến bằng cách sử dụng unset (phiên $ _ [Sản phẩm trực tuyến]). Dòng 34 - 42: Điều này đảm bảo rằng trang này chỉ có thể truy cập được cho những người dùng được ghi lại in.line 45 - 50: Điều này hiển thị thông báo chào mừng được cá nhân hóa cho người dùng sau khi họ đăng nhập tệp.css & nbsp; CSS header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
4session_start()13session_start()14session_start()44 session_start()45 session_start()15Welcome 'username'4echo "Welcome '" . $username . "'";?>
<meta http-equiv="refresh" content="5; url=index.php" />
<?php
exit;#should be added so rest of page doesn't load.
05header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
025header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
4session_start()59session_start()14session_start()61Welcome 'username'4echo "Welcome '" . $username . "'";?>
<meta http-equiv="refresh" content="5; url=index.php" />
<?php
exit;#should be added so rest of page doesn't load.
05header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
035header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
4header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
037session_start()14header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
039Welcome 'username'4header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
4session_start()59session_start()14header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
044Welcome 'username'4header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
4session_start()13session_start()14header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
049Welcome 'username'4header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
4session_start()25session_start()14session_start()85Welcome 'username'4echo "Welcome '" . $username . "'";?>
<meta http-equiv="refresh" content="5; url=index.php" />
<?php
exit;#should be added so rest of page doesn't load.
05header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
057header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
4header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
059session_start()14header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
061Welcome 'username'4header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
4session_start()64session_start()14session_start()66 session_start()67 session_start()68Welcome 'username'4header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
4session_start()76session_start()77 session_start()77 session_start()15 session_start()15Welcome 'username'4header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
4session_start()25session_start()14header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
077Welcome 'username'4header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
4session_start()76session_start()77Welcome 'username'4header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
4session_start()13session_start()14session_start()15 session_start()45Welcome 'username'4echo "Welcome '" . $username . "'";?>
<meta http-equiv="refresh" content="5; url=index.php" />
<?php
exit;#should be added so rest of page doesn't load.
05header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
091header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
4header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
093session_start()14header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
095Welcome 'username'4header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
4session_start()18session_start()14header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
100Welcome 'username'4header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
4session_start()25session_start()14header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
105Welcome 'username'4header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
4session_start()49session_start()14session_start()51Welcome 'username'4header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
4session_start()30session_start()14header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
115Welcome 'username'4header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
4session_start()64session_start()14session_start()73Welcome 'username'4header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
4session_start()76session_start()77Welcome 'username'4echo "Welcome '" . $username . "'";?>
<meta http-equiv="refresh" content="5; url=index.php" />
<?php
exit;#should be added so rest of page doesn't load.
05header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
127header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
4session_start()37session_start()14header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
131Welcome 'username'4header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
4session_start()13session_start()14session_start()15 session_start()45Welcome 'username'4header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
4session_start()18session_start()14session_start()77Welcome 'username'4header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
4session_start()64session_start()14session_start()66 session_start()67 header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
149Welcome 'username'4header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
4session_start()49session_start()14header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
149Welcome 'username'4header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
4session_start()30session_start()14header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
159Welcome 'username'4header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
4session_start()76header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
049Welcome 'username'4header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
4session_start()59session_start()14header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
044Welcome 'username'4echo "Welcome '" . $username . "'";?>
<meta http-equiv="refresh" content="5; url=index.php" />
<?php
exit;#should be added so rest of page doesn't load.
05header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
171‘ header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
4session_start()30session_start()14header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
180Welcome 'username'4header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
4session_start()64session_start()14session_start()66 session_start()67 header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
175Welcome 'username'4header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
4header("Refresh: 5; url=index.php");
echo "Welcome '" . $username . "'";
exit;#should be added so rest of page doesn't load.
190session_start()14session_start()85Welcome 'username'4echo "Welcome '" . $username . "'";?>
<meta http-equiv="refresh" content="5; url=index.php" />
<?php
exit;#should be added so rest of page doesn't load.
05Đại diện hình ảnh: & NBSP;
Trang đăng ký Người dùng được chuyển hướng đến trang này sau khi đăng nhập. Một thông báo chào mừng được hiển thị ở đó. Trang đăng nhập của hệ thống Người dùng đã đăng nhập thành công Tên truy nhập không chính xác và kết hợp mật khẩu Làm thế nào để chạy dự án này?Các mã nguồn của dự án này có thể được lấy từ kho lưu trữ GitHub này. Sau khi tải xuống và giải nén dự án, hãy làm theo các bước đã cho để chạy chương trình: & NBSP;
After downloading and unzipping the project, follow the given steps to run the program:
- Tải xuống tất cả các tệp hoặc sao chép kho lưu trữ vào hệ thống cục bộ của bạn.
- Tạo một cơ sở dữ liệu có tên ‘Đăng ký, và một bảng có tên‘ Người dùng. Mã MySQL của bảng đã được cung cấp ở trên.
- Sử dụng Xamp hoặc Wamp để chạy hệ thống trên Localhost.
- Đảm bảo rằng các cổng cần thiết để chạy máy chủ Apache và MySQL là miễn phí. Nếu không, thì bạn sẽ phải thay đổi số cổng.
HTML là nền tảng của các trang web, được sử dụng để phát triển trang web bằng cách cấu trúc các trang web và ứng dụng web. PHP là ngôn ngữ kịch bản phía máy chủ được thiết kế dành riêng cho phát triển web. Bạn có thể học PHP từ đầu bằng cách làm theo hướng dẫn PHP và các ví dụ PHP này.
Làm thế nào để hiển thị tên người dùng sau khi đăng nhập bằng PHP?
Đăng ký. Trang PHP yêu cầu tên người dùng, email và mật khẩu mong muốn của người dùng, sau đó gửi dữ liệu đã nhập vào cơ sở dữ liệu, sau khi nhấp vào nút gửi. Sau này, người dùng được chuyển hướng đến chỉ mục. Trang PHP trong đó tin nhắn chào mừng và tên người dùng của người dùng đã đăng nhập được hiển thị.
Làm thế nào lấy dữ liệu từ cơ sở dữ liệu của một người dùng cụ thể sau khi đăng nhập PHP?
Lấy hoặc tìm nạp dữ liệu từ cơ sở dữ liệu trong PHP.. Chọn Cột_Name (S) từ Table_Name .. $ query = mysql_query ("Chọn * từ TableName", $ Connection) ;. $ Kết nối = mysql_connect ("localhost", "root", "") ;. $ db = mysql_select_db ("công ty", $ kết nối) ;. $ query = mysql_query ("Chọn * từ nhân viên", $ Connection) ;. Làm cách nào để giữ cho người dùng đăng nhập PHP?
Do đó, người dùng có thể đăng nhập mà không phải nhập tên người dùng và mật khẩu một lần nữa cho đến khi tuổi thọ của cookie đó hết hạn.Mã ví dụ được đưa ra dưới đây là cách để nhớ hộp kiểm Mật khẩu hoạt động thông qua PHP.$ name = MySQLI_REAL_ESCAPE_STRING ($ Connect, $ _Post ["user_name"]);$name = mysqli_real_escape_string( $connect , $_POST [ "user_name" ]);
Làm thế nào để bạn kiểm tra xem người dùng có đăng nhập PHP không?
session_start (); kiểm tra xem $ _Session ["loggedin"] (không phải) đúng - nếu không, chuyển hướng chúng đến trang đăng nhập.Lưu câu trả lời này. Check if $_SESSION["loggedIn" ] (is not) true - If not, redirect them to the login page. Save this answer. | 
