Login Form PHP + MySQL Database

Login Form PHP + MySQL Database

Simple login form system in PHP + MySQL with session. In this tutorial, you will learn how to create simple login form in PHP and MySQL with session and server-side validation.

This tutorial will explain how to create a login system in PHP. How you can validate user credentials (email id or password) on the server. Also, we will explain how you can validate data before logged using the MySQL database.

And as well as you can download the free source code of simple login form in php with mysql database with server-side validation.

Simple Login Form in PHP with MySQL Database

  1. Create a Database Connection File
  2. Create Login Page In PHP
  3. User Profile Page PHP File

1. Create a Database Connection File

In this step, you will create a file name db.php and update the below code into your file.

The below code is used to create a MySQL database connection in PHP. When we insert form data into MySQL database, there we will include this file:

<?php
    $servername='localhost';
    $username='root';
    $password='';
    $dbname = "my_db";
    $conn=mysqli_connect($servername,$username,$password,"$dbname");
      if(!$conn){
          die('Could not Connect MySql Server:' .mysql_error());
        }
?>

2. Create Login Page In PHP

In this step, we need to create a form, where we accept user email id and password. So you can create a login.php file and update the below code into your file.

The below code is used to show login form and authenticate the user with MySQL database in PHP.

<?php
session_start();
require_once "db.php";
if (isset($_SESSION['user_id']) != "") {
header("Location: dashboard.php");
}
if (isset($_POST['login'])) {
$email    = mysqli_real_escape_string($conn, $_POST['email']);
$password = mysqli_real_escape_string($conn, $_POST['password']);
if (!filter_var($email, FILTER_VALIDATE_EMAIL)) {
$email_error = "Please Enter Valid Email ID";
}
if (strlen($password) < 6) {
$password_error = "Password must be minimum of 6 characters";
}
$result = mysqli_query($conn, "SELECT * FROM users WHERE email = '" . $email . "' and password = '" . md5($password) . "'");
if ($row = mysqli_fetch_array($result)) {
$_SESSION['user_id']     = $row['uid'];
$_SESSION['user_name']   = $row['name'];
$_SESSION['user_mobile'] = $row['mobile'];
$_SESSION['user_email']  = $row['email'];
header("Location: dashboard.php");
} else {
$error_message = "Incorrect Email or Password!!!";
}
}
?>
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Simple Login Form in PHP with Validation | Tutsmake.com</title>
<link rel="stylesheet" type="text/css" href="https://stackpath.bootstrapcdn.com/bootstrap/4.3.1/css/bootstrap.min.css">
</head>
<body>
<div class="container">
<div class="row">
<div class="col-lg-10">
<div class="page-header">
<h2>Login Form in PHP with Validation</h2>
</div>
<p>Please fill all fields in the form</p>
<span class="text-danger"><?php if (isset($error_message)) echo $error_message; ?></span>
<form action="<?php echo htmlspecialchars($_SERVER["PHP_SELF"]); ?>" method="post">
<div class="form-group ">
<label>Email</label>
<input type="email" name="email" class="form-control" value="" maxlength="30" required="">
<span class="text-danger"><?php if (isset($email_error)) echo $email_error; ?></span>
</div>
<div class="form-group">
<label>Password</label>
<input type="password" name="password" class="form-control" value="" maxlength="8" required="">
<span class="text-danger"><?php if (isset($password_error)) echo $password_error; ?></span>
</div>
<input type="submit" class="btn btn-primary" name="login" value="submit">
<br>
You don't have account?<a href="registration.php" class="mt-3">Click Here</a>
</form>
</div>
</div>
</div>
</body>
</html>

3. User Profile Page PHP File

In this step, we need to create a new file name dashboard.php and update the below code into your file.

The below code used to show logged in user data.

<?php
session_start();
if(isset($_SESSION['user_id']) =="") {
header("Location: login.php");
}
?>
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>User Info Dashboard | Tutsmake.com</title>
<link href="https://stackpath.bootstrapcdn.com/bootstrap/4.3.1/css/bootstrap.min.css" rel="stylesheet">
</head>
<body>
<div class="container">
<div class="row">
<div class="col-lg-8">
<div class="card">
<div class="card-body">
<h5 class="card-title">Name :- <?php echo $_SESSION['user_name']?></h5>
<p class="card-text">Email :- <?php echo $_SESSION['user_email']?></p>
<p class="card-text">Mobile :- <?php echo $_SESSION['user_mobile']?></p>
<a href="logout.php" class="btn btn-primary">Logout</a>
</div>
</div>
</div>
</div>
</div>
</body>
</html>

Conclusion

In this tutorial, you have learned how to create a login system in PHP and MySQL database.

This is a very basic and easy example of creating a login form and authenticate the user to a MySQL database in PHP. In the next article, we will show you how you can create a login and registration application in PHP.

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AuthorAdmin

My name is Devendra Dode. I am a full-stack developer, entrepreneur, and owner of Tutsmake.com. I like writing tutorials and tips that can help other developers. I share tutorials of PHP, Python, Javascript, JQuery, Laravel, Livewire, Codeigniter, Node JS, Express JS, Vue JS, Angular JS, React Js, MySQL, MongoDB, REST APIs, Windows, Xampp, Linux, Ubuntu, Amazon AWS, Composer, SEO, WordPress, SSL and Bootstrap from a starting stage. As well as demo example.

One reply to Login Form PHP + MySQL Database

  1. Nice tutorial of Login page in PHP with database source code

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