Login

<?php

include 'connect.php';
session_start();
if (isset($_POST['submit'])) {
  $username = $_POST['username'];
  $password = $_POST['password'];
	if ($username&&$password)
	{
	  $query = mysql_query("SELECT * FROM users WHERE username ='$username'");
    if($numrows!==0) {
      while($row = mysql_fetch_assoc($query)) {
  			$numrows = mysql_num_rows($query);
			  $expire= time()+60*60*24*30;//30days
			  setcookie("uid",$row['id'], $expire);
			  setcookie("username", $row['username'], $expire);
		//        setcookie("password", $_POST['password'], $expire);
        		  $dbusername = $row['username'];
        		  $dbpassword = $row['password'];
      }
      if($username==$dbusername&&md5 ($password)==$dbpassword) {
			  header("location: index.php");
        		  $_SESSION['username'] = $username;
			  echo "Logged in. as <b>".$row['username']."</b>";
      }
      else
        $_SESSION['message'] = 'Your password is incorrect!';
    }
    else
       $_SESSION['message'] = 'User does not exist';
  }
  mysql_close($connection);
}
?>


<html>
<body>


<!-- <link href="//db.onlinewebfonts.com/c/a4e256ed67403c6ad5d43937ed48a77b?family=Core+Sans+N+W01+35+Light" rel="stylesheet" type="text/css"/> -->
<link rel="stylesheet" href="form.css" type="text/css">
<div class="body-content">
  <div class="module">
    <h1>Login</h1>


	<form class =form action="/login.php" method="post" enctype="multipart/form-data" autocomplete="on">
	<div class="alert alert-error"><?= $_SESSION['message'] ?></div>
  	<input type="text" placeholder="Username" name="username" value="<?php if(isset($_COOKIE['username'])) echo $_COOKIE['username']; ?>" required>
  	<input type="password" placeholder="Password" name="password" required>
	<!-- value="<?php if(isset($_COOKIE['password'])) echo $_COOKIE['password']; ?>" -->


      <input type="submit" value="Login" name="submit" class="btn btn-block btn-primary" />


      <a  class="btn"href="form.php">Register </a> If you haven't registered yet
         <style>
        h1 {text-align:center}
      </style>
    </form>
  </div>
</div>
</body>
</html>