PHP - Complete Registration Login Form In SQLite

Submitted by razormist on Tuesday, January 28, 2020 - 11:46.

In this tutorial we will create a Complete Registration Login Form In SQLite using PHP. This code will login and register an user account for accessing when user submit the form inputs. The code use two functionalities that can create new user account by the use of SQLite INSERT query and after the account created the user can login using SELECT query. This a free program, you can apply this to your system as your own. We will be using SQLite that provides an interface for accessing the database. It includes class interfaces to the SQL commands. And also it allows you to create SQL functions and aggregate using PHP.

Getting Started:

First you have to download & install XAMPP or any local server that run PHP scripts. Here's the link for XAMPP server https://www.apachefriends.org/index.html. And, this is the link for the bootstrap that i used for the layout design https://getbootstrap.com/. Installing SQLite Browser We will now then install the SQLite data viewer, here's the link for the DB Browser for SQLite http://sqlitebrowser.org/.

Setting Up SQLite

First, we are going to enable SQLite 3 in our PHP.

Open localhost server folder XAMPP, etc and locate php.ini.
Open php.ini and enable sqlite3 by removing the semicolon in the line.
Save changes and Restart Server.

Creating the database connection

Open your any kind of text editor(notepad++, etc..). Then just copy/paste the code below then name it conn.php.

<?php
        $conn=new SQLite3('db/db_user') or die("Unable to open database!");
        $query="CREATE TABLE IF NOT EXISTS `user`(user_id INTEGER PRIMARY KEY AUTOINCREMENT NOT NULL, username TEXT, password TEXT, name TEXT)";        
        $conn->exec($query);
?>

Creating The Interface

This is where we will create a simple form for our application. To create the forms simply copy and write it into you text editor, then save it as shown below. index.php

<!DOCTYPE html>
<html lang="en">
        <head>
                <meta charset="UTF-8" name="viewport" content="width=device-width, initial-scale=1"/>
                <link rel="stylesheet" type="text/css" href="css/bootstrap.css"/>
        </head>
<body>
        <nav class="navbar navbar-default">
                <div class="container-fluid">
                        <a class="navbar-brand" href="https://sourcecodester.com">Sourcecodester</a>
                </div>
        </nav>
        <div class="col-md-3"></div>
        <div class="col-md-6 well">
                <h3 class="text-primary">PHP - Complete Registration Login Form In SQLite</h3>
                <hr style="border-top:1px dotted #ccc;"/>
                <div class="col-md-5">
                        <form action="" method="POST">
                                <div class="form-group">
                                        <label>Username</label>
                                        <input type="text" name="username" class="form-control" required="required"/>
                                </div>
                                <div class="form-group">
                                        <label>Password</label>
                                        <input type="password" name="password" class="form-control" required="required"/>
                                </div>
                                
                                <center><button name="login" class="btn btn-primary"><span class="glyphicon glyphicon-log-in"></span> Login</button></center>
                                
                        </form>
                        <br />
                        <?php include 'login.php'?>
                </div>
                <div class="col-md-2"></div>
                <div class="col-md-5">
                        <div class="alert alert-info">No account yet? Register here...</div>
                        <form action="" method="POST">
                                <div class="form-group">
                                        <label>Name</label>
                                        <input type="text" name="name" class="form-control" required="required"/>
                                </div>
                                <div class="form-group">
                                        <label>Username</label>
                                        <input type="text" name="username" class="form-control" required="required"/>
                                </div>
                                <div class="form-group">
                                        <label>Password</label>
                                        <input type="password" name="password" class="form-control" required="required"/>
                                </div>
                
                                <center><button name="register" class="btn btn-success">Register</button></center>
                                
                        </form>
                        <br />
                        <?php include'register.php'?>
                </div>
        </div>
 
</body> 
</html>

home.php

<?php
        session_start();
        if(!ISSET($_SESSION['user_id'])){
                header('location: index.php');
        }
?>
<!DOCTYPE html>
<html lang="en">
        <head>
                <meta charset="UTF-8" name="viewport" content="width=device-width, initial-scale=1"/>
                <link rel="stylesheet" type="text/css" href="css/bootstrap.css"/>
        </head>
<body>
        <nav class="navbar navbar-default">
                <div class="container-fluid">
                        <a class="navbar-brand" href="https://sourcecodester.com">Sourcecodester</a>
                </div>
        </nav>
        <div class="col-md-3"></div>
        <div class="col-md-6 well">
                <h3 class="text-primary">PHP - Complete Registration Login Form In SQLite</h3>
                <hr style="border-top:1px dotted #ccc;"/>
                <center><h1>WELCOME USER</h1></center>
                <a href="logout.php">logout</a>
        </div>
 
</body> 
</html>

Creating the Main Function

This code contains the main function of the application. This code will register and login the user account. To do this just copy and write these block of codes as shown below inside the text editor, then save it as shown below. register.php

<?php
        require_once'conn.php';
        if(ISSET($_POST['register'])){
                $name=$_POST['name'];
                $username=$_POST['username'];
                $password=$_POST['password'];
 
 
                $query="INSERT INTO `user` (name, username, password) VALUES('$name', '$username', '$password')";
 
                $conn->exec($query);
 
                
                echo "<center><h4 class='text-success'>Successfully registered!</h4></center>";
        }
?>

login.php

<?php
        session_start();
        require_once 'conn.php';
        
        if(ISSET($_POST['login'])){
                $username = $_POST['username'];
                $password = $_POST['password'];
                $query1=$conn->query("SELECT * FROM `user` WHERE `username`='$username' AND `password`='$password'");
                $row1=$query1->fetchArray();
                
                $query=$conn->query("SELECT COUNT(*) as count FROM `user` WHERE `username`='$username' AND `password`='$password'");
                $row=$query->fetchArray();
                $count=$row['count'];
                if($count > 0){
                        $_SESSION['user_id']=$row1['user_id'];
                        header('location: home.php');
                }else{
                        echo "<div class='alert alert-danger'>Invalid username or password</div>";
                }
        }
?>

logout.php

<?php
        session_start();
        session_destroy();
        header('location: index.php');
?>

There you have it we successfully created a Complete Registration Login Form In SQLite using PHP. I hope that this simple tutorial help you to what you are looking for. For more updates and tutorials just kindly visit this site. Enjoy Coding!!!

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