In this tutorial we will create a
Login Form In SQLite using PHP. This code will login the given account in order to access the home page of the application when user click the login button. The code use a SQLite
SELECT() function and by adding a
WHERE clause and setting the parameter for both
username and
password with
POST value. This is a user-friendly kind of program feel free user it in your program.
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 jquery that i used in this tutorial
https://jquery.com/.
Lastly, 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)";
$query=$conn->query("SELECT COUNT(*) as count FROM `user`");
$row=$query->fetchArray();
$countRow=$row['count'];
if($countRow == 0){
$conn->exec("INSERT INTO `user` (username, password, name) VALUES('admin', 'admin', 'Administrator')"); }
?>
Creating The Interface
This is where we will create a simple form for our application. To create the forms simply copy and write it into you text editor, then save it as
index.php.
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8" name="viewport" content="width=device-width, initial-scale=1"/>
<link rel="stylesheet" type="text/css" href="css/bootstrap.css"/>
</head>
<body>
<nav class="navbar navbar-default">
<div class="container-fluid">
<a class="navbar-brand" href="https://sourcecodester.com">Sourcecodester</a>
</div>
</nav>
<div class="col-md-3"></div>
<div class="col-md-6 well">
<h3 class="text-primary">PHP - Login Form In SQLite</h3>
<hr style="border-top:1px dotted #ccc;"/>
<div class="col-md-6">
<form action="" method="POST">
<div class="form-group">
<label>Username</label>
<input type="text" name="username" class="form-control" required="required"/>
</div>
<div class="form-group">
<label>Password</label>
<input type="password" name="password" class="form-control" required="required"/>
</div>
<center><button name="login" class="btn btn-primary"><span class="glyphicon glyphicon-log-in"></span> Login</button></center>
</form>
<br />
<?php include 'login.php'?>
</div>
<div class="col-md-3">
<h6>Default username: admin</h6>
<h6>Default password: admin</h6>
</div>
</div>
</body>
</html>
Creating the Main Function
This code contains the main function of the application. This code will login the given data to SQLite database. To do this just copy and write these block of codes as shown below inside the text editor, then save it as
login.php.
<?php
require_once 'conn.php';
if(ISSET($_POST['login'])){ $username = $_POST['username'];
$password = $_POST['password'];
$query=$conn->query("SELECT COUNT(*) as count FROM `user` WHERE `username`='$username' AND `password`='$password'");
$row=$query->fetchArray();
$count=$row['count'];
if($count > 0){
echo "<div class='alert alert-success'>Login successful</div>";
}else{
echo "<div class='alert alert-danger'>Invalid username or password</div>";
}
}
?>
There you have it we successfully created a
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!!!
