// session.php
<?php
$servername = "localhost";
$username = "root";
$password = "";
$dbname = "Lusers";
// Create connection
$conn_statue = mysqli_connect($servername, $username, $password,$dbname);


$conn_statue->query("set name utf8");
$conn_statue->query("set character set utf8");
   session_start();

   $user_check = $_SESSION['login_user'];

   $ses_sql = mysqli_query($db,"select username from admin where username = '$user_check' ");

   $row = mysqli_fetch_array($ses_sql,MYSQLI_ASSOC);

   $login_session = $row['username'];

   if(!isset($_SESSION['login_user'])){
      header("location:login.php");
   }
?>