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<?php
//include('login.php'); // Includes Login Script
session_start(); // Starting Session
$error=''; // Variable To Store Error Message
if (isset($_POST['submit'])) {
if (empty($_POST['username']) || empty($_POST['password'])) {
$error = "Username or Password is invalid";
}
else
{
// Define $username and $password
$username=$_POST['username'];
$password=$_POST['password'];
// Establishing Connection with Server by passing server_name, user_id and password as a parameter
$connection = mysql_connect("localhost", "Database", "Password");
// To protect MySQL injection for Security purpose
$username = stripslashes($username);
$password = stripslashes($password);
$username = mysql_real_escape_string($username);
$password = mysql_real_escape_string($password);
// Selecting Database
$db = mysql_select_db("julianme_Quick", $connection);
// SQL query to fetch information of registerd users and finds user match.
$query = mysql_query("select * from QuickFood_Werknemers where password='$password' AND username='$username'", $connection);
$rows = mysql_num_rows($query);
if ($rows == 1) {
$_SESSION['login_user']=$username; // Initializing Session
header("location: main.php"); // Redirecting To Other Page
} else {
$error = "Username or Password is invalid";
}
mysql_close($connection); // Closing Connection
}
}

if(isset($_SESSION['login_user'])){
header("location: main.php");
}
?>
<!DOCTYPE html>
<html >
<head>
  <meta charset="UTF-8">
  <title>Quick Company</title>
  <link href="https://fonts.googleapis.com/icon?family=Material+Icons"
      rel="stylesheet">
<link href='https://fonts.googleapis.com/css?family=Roboto:400,500' rel='stylesheet' type='text/css'>
  <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/meyer-reset/2.0/reset.min.css">


      <link rel="stylesheet" href="css/style.css">


</head>

<body>
  <div class="login-container">
  <section class="login" id="login">
    <header>
      <h2>Quick Company</h2>
      <h4>Login</h4>
    </header>
    <form class="login-form" action="" method="post">
      <input type="text" class="login-input" name="username" id="name" placeholder="User"/>
      <input type="password" class="login-input" name="password" id="password" placeholder="Password"/>
      <div class="submit-container">
        <button name="submit" type="submit" class="login-button">SIGN IN</button>
      </div>
    </form>
  </section>
  <p>2017 - <a href="https://www.twitter.com/x16julian16x">Julian Meurer</a></p>
</div>
    <script  src="js/index.js"></script>
</body>
</html>