Dormitory Management System

This system has the capability to create a user account as well it can change password. It can do different transactions such as assigning rooms to a students, view availability of rooms, etc. This is very useful system and easy to use.

Hope you learn from this.

DOWNLOAD HERE

How to Create Secure Registration Page in PHP/MySQL Part III

In our last two articles, we discuss on how to create a registration page using mysql andmysqli extension and how to secure it using mysql_real_escape_string or mysqli_real_escape_string.

This time we will modify our code to use PDO instead of mysql or mysqli extension.

Before we begin, let’s give some few advantages of using PDO in favor of mysqli.

• Portability – supports 12 different drivers
• Prepared statements – no need to use real_escape_string
• Object Oriented
• Named parameters
• Support stored procedures

PDO and mysqli has little to no difference at all except that PDO is more portable. So, if you want to connect to multiple databases without using different drivers, it’s preferable to use PDO.

Now, here’s the code of using PDO with little changes from our previous tutorial.

registration3.html

How to Create Secure Login Page in PHP/MySQL Part II

This is a continuation of the topic that I have discuss yesterday on How to Create Secure Login Page in PHP/MySQL. Since PDO is too complicated compared with mysqli, I decided to separate this tutorial.

So, here we go.

login.html

Modify the code on our previous tutorial from:

to

login3.php

<?php


$username = $_POST['username'];


$password = $_POST['password'];


 


$conn = new PDO('mysql:host=localhost;dbname=login', 'root', '');


 


$query = "SELECT password, salt


        FROM member


        WHERE username = :username";


 


$result = $conn->prepare($query);


$result->bindParam(":username", $username);


$result->execute();


 


$number_of_rows = $result->rowCount();


 


if($number_of_rows == 0) // User not found. So, redirect to login_form again.


{


    header('Location: login.html');


}


 


$userData  = $result->fetch(PDO::FETCH_ASSOC);


 


$hash = hash('sha256', $userData['salt'] . hash('sha256', $password) );


 


if($hash != $userData['password']) // Incorrect password. So, redirect to login_form again.


{


    header('Location: login.html');


}else{ // Redirect to home page after successful login.


 header('Location: home.html');


}


?>

As you can see above, there are some changes that are far different compared to mysqli.

Take this example:

In mysqli we use this code:

$result = $mysqli->query($query);

This is the equivalent in PDO:

$result = $conn->prepare($query);

Another is difference on how to fetch the record. In mysqli:

$userData = mysqli_fetch_array($result, MYSQL_ASSOC);

In PDO:

$userData  = $result->fetch(PDO::FETCH_ASSOC);