<!DOCTYPE html>
<?php session_start()?>
<html lang="en">
    <head>
        <meta charset="UTF-8" name="viewport" content="width=device-width, initial-scale=1"/>
        <link rel="stylesheet" type="text/css" href="css/bootstrap.css"/>
    </head>
<body>
    <nav class="navbar navbar-default">
        <div class="container-fluid">

        </div>
    </nav>
    <div class="col-md-3"></div>
    <div class="col-md-6 well">
    <h3 class="text-primary">PHP LOGIN REGISTER PDO</h3>
        <hr style="border-top:1px dotted #ccc;"/>
        <a href="index.php">Not a member yet? Register here...</a>
        <br style="clear:both;"/><br />
        <div class="col-md-3"></div>
        <div class="col-md-6">
            <form method="POST" action="login_query.php">
                <div class="alert alert-info">Login</div>
                <div class="form-group">
                    <label>Username</label>
                    <input type="text" name="username" class="form-control" required="required"/>
                </div>
                <div class="form-group">
                    <label>Password</label>
                    <input type="password" name="password" class="form-control" required="required"/>
                </div>
                <?php
                    if(ISSET($_SESSION['error'])){
                ?>
                    <div class="alert alert-danger"><?php echo $_SESSION['error']?></div>
                <?php
                    session_unset($_SESSION['error']);
                    }
                ?>
                <button class="btn btn-primary btn-block" name="login"><span class="glyphicon glyphicon-log-in"></span> Login</button>
            </form>
        </div>
    </div>
</body>
</html>