Untitled

<!DOCTYPE>
<html>
  <head>
    <link href="CSS/web.css" type="text/css" rel="stylesheet" >
  </head>
  <body>
    <div id="content">
      <div id="header">
        <img src="Pictures/senseiPizza.jpg" alt="Logo" width="100" height="90">
        <h1>Sensei Pizza</h1>
        <div class="address">
          <h2>Restaurant Location:</h2>
          <span>28 Sewer Street, (Shredder Town) New York</span>
        </div>
      </div>
      <div class="motto">
        <h3>Sensei Pizza will fufill its mission ... to feed you.</h3>
      </div>
      <div class="subContent">
        <nav>
          <ul>
            <li><a href="home.php">Home</a></li>
            <li><a href="register.php">Register</a></li>
          </ul>
        </nav>
        <div id="main">
          <form method="post" action="<?php $_PHP_SELF ?>">
      			Username:<input type="text" name="user"><br>
      			Password:<input type="password" name="pass"><br>
      			<input type="submit" name="login" id="login" value="Login">
      		</form>
          <?php
          if(isset($_POST['login']))
          {
            $servername = "localhost";
            $username = "root";
            $password = "";
            $dbname = "senseipizza";

            // Create connection
            $conn = mysqli_connect($servername, $username, $password, $dbname);
            // Check connection
            if (!$conn) {
                die("Connection failed: " . $conn->connect_error);
            }
            $user = $_POST['user'];
            $pass = $_POST['pass'];

            $sql1 = "SELECT customerUsername, customerPassword FROM customer
                      WHERE customerUsername = '$user' AND customerPassword = '$pass' ";
            $sql2 = "SELECT staffUsername, staffPassword FROM staff
                      WHERE staffUsername = '$user' AND staffPassword = '$pass' ";
            if ($conn->query($sql1) === TRUE) {
                header("Location: custHome.php");
            } else if ($conn->query($sql2) === TRUE) {
                header("Location: staffHome.php");
            }
            else {
              echo "<p>Error: " . $sql1 . "<br>" . $conn->error . "</p>";
              echo "<br/><p>Error: " . $sql2 . "<br>" . $conn->error . "</p>";
            }

            mysqli_close($conn);
        }
           ?>
        </div>
      </div>
      <footer>
        <p> Sensei Pizza is a pizza registered restaurant and copywrited by the unifications act of the United States &#169; 2016 </p>
      </footer>
    </div>
  </body>
</html>