Untitled

<?php
   include("config.php");
   session_start();

   if($_SERVER["REQUEST_METHOD"] == "POST") {
      // username and password sent from form

      $myusername = mysqli_real_escape_string($db,$_POST['username']);
      $mypassword = mysqli_real_escape_string($db,$_POST['password']);

      $sql = "SELECT id FROM secbulwark WHERE username = '$myusername' and password = '$mypassword'";
      $result = mysqli_query($db,$sql);
      $row = mysqli_fetch_array($result,MYSQLI_ASSOC);
      $active = $row['active'];

      $count = mysqli_num_rows($result);

      // If result matched $myusername and $mypassword, table row must be 1 row

      if($count == 1) {
         session_register("myusername");
         $_SESSION['login_user'] = $myusername;

         header("location: welcome.php");
      }else {
         $error = "Your Login Name or Password is invalid";
      }
   }
?>


<html lang="en">
<head>
  <title>Bootstrap Case</title>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css">
  <script src="https://ajax.googleapis.com/ajax/libs/jquery/3.2.0/jquery.min.js"></script>
  <script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/js/bootstrap.min.js"></script>
</head>

<body>
   <center>
      <div id="header" style="overflow: hidden; height: 400px">
         <img src="SecBul.jpg" style="max-width: 100%" />
</div>

<nav class="navbar navbar-inverse">
  <div class="container-fluid">
    <div class="navbar-header">
      <a class="navbar-brand" href="#">Security Bulwark</a>
    </div>
    <ul class="nav navbar-nav">
      <li><a href="Portfolio.html">Portfolio</a></li>
      <li><a href="AboutUs.html">About Us</a></li>
    </ul>
    <ul class="nav navbar-nav navbar-right">
      <li><a href="signup.html"><span class="glyphicon glyphicon-user"></span> Sign Up</a></li>
      <li><a href="login.php"><span class="glyphicon glyphicon-log-in"></span> Login</a></li>
    </ul>
  </div>
</nav>

<p>
   <h2>Please Log In </h2>
    <form action = "" method = "POST">
                  <label>Username: </label><input type = "username" name = "username" class = "box"/><br/><br/>
                  <label>Password: </label><input type = "password" name = "password" class = "box" /><br/><br/>
                  <input type = "submit" value = " Submit "/><br />
   </form>
    <div><?php echo $error; ?></div>
</p>

<br></br>
This is a secured website and requires prior authorization to access.
</center>
</body>
</html>