File: /var/www/html/barcode/admin/index.php
<?php session_start();
include_once('../includes/config.php');
// Code for login
if(isset($_POST['login']))
{
$adminusername=$_POST['username'];
$pass=md5($_POST['password']);
$ret=mysqli_query($con,"SELECT * FROM admin WHERE username='$adminusername' and password='$pass'");
$num=mysqli_fetch_array($ret);
if($num>0)
{
$extra="dashboard.php";
$_SESSION['login']=$_POST['username'];
$_SESSION['adminid']=$num['id'];
echo "<script>window.location.href='".$extra."'</script>";
exit();
}
else
{
echo "<script>alert('Invalid username or password');</script>";
$extra="index.php";
echo "<script>window.location.href='".$extra."'</script>";
exit();
}
}
?>
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8" />
<meta http-equiv="X-UA-Compatible" content="IE=edge" />
<meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no" />
<meta name="description" content="" />
<meta name="author" content="" />
<title>Admin Login | Barcode Management System</title>
<link href="../css/styles.css" rel="stylesheet" />
<script src="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/5.15.3/js/all.min.js" crossorigin="anonymous"></script>
</head>
<body class="bg-primary">
<div id="layoutAuthentication">
<div id="layoutAuthentication_content">
<main>
<div class="container">
<div class="row justify-content-center">
<div class="col-lg-5">
<div class="card shadow-lg border-0 rounded-lg mt-5">
<div class="card-header">
<h2 align="center">Barcode Management System</h2>
<hr />
<h3 class="text-center font-weight-light my-4">Admin Login</h3></div>
<div class="card-body">
<form method="post">
<div class="form-floating mb-3">
<input class="form-control" name="username" type="text" placeholder="Username" required/>
<label for="inputEmail">Username</label>
</div>
<div class="form-floating mb-3">
<input class="form-control" name="password" type="password" placeholder="Password" required />
<label for="inputPassword">Password</label>
</div>
<div class="d-flex align-items-center justify-content-between mt-4 mb-0">
<a class="small" href="password-recovery.php">Forgot Password?</a>
<button class="btn btn-primary" name="login" type="submit">Login</button>
</div>
</form>
</div>
<div class="card-footer text-center py-3">
<div class="small"><a href="../index.php">Back to Home Page</a></div>
</div>
</div>
</div>
</div>
</div>
</main>
</div>
<?php include('../includes/footer.php');?>
</div>
<script src="https://cdn.jsdelivr.net/npm/bootstrap@5.1.0/dist/js/bootstrap.bundle.min.js" crossorigin="anonymous"></script>
<script src="../js/scripts.js"></script>
</body>
</html>