Untitled

<?php
    require 'connect.php';
    session_start();

    $Username = $_SESSION['username'];

    $result = $con->query("SELECT * FROM user_book WHERE Username='{$Username}'");
    $row = $result->fetch_array(MYSQLI_BOTH);

    $comp_r = $con->query("SELECT * FROM comp_user WHERE Username='{$Username}'");
    $row_c = $comp_r->fetch_array(MYSQLI_BOTH);

    $user_r = $con->query("SELECT * FROM user WHERE Username='{$Username}'");
    $row_s = $user_r->fetch_array(MYSQLI_BOTH);

    if(isset($_POST['submit']))
    {
        $sql = $con->query("UPDATE user_book SET Paid = 'Ja' WHERE Username = '$Username'");
        header("Location: acc1.php");
    }
?>
<!DOCTYPE html>
<html>
<head>
    <title>NTIGLAN REGISTRERING</title>
    <meta charset="UTF-8">
    <link rel="stylesheet" type="text/css" href="ind1.css">
</head>
<body>
    <center>
        <p class="username"><?php echo $_SESSION['username']; ?></p>
        <div id="info">
            <?php if($row['Paid'] == "Nej"){ ?>
                <p style="color: red">Ej betald <br>Att betala: <?php echo $row['Price']; ?>kr</p>
                <?php if($row_c['Teamname'] != "Inget"){ ?>
                    <p><?php echo $row_s['Fname']. " " .$row_s['Lname'] ?><br>Lagledare för: <?php echo $row_c['Teamname'] ?></p>
                <?php } ?>
                <form method="post">
                    <input name="submit" type="submit" value=" " class="secret">
                </form>
            <?php }else{ ?>
                <p style="color: green">Plats: <?php echo $row['seat']; ?></p>
                <?php
                    if($row_c['Teamname'] != "Inget" || $row_c['Teamname'] != "" || $row_c['Teamname'] != null ){
                ?>
                    <p><?php echo $row_s['Fname']. " " .$row_s['Lname'] ?><br>Lagledare för: <?php echo $row_c['Teamname'] ?></p>
                <?php } ?>
                <img src="images/bokningsbild.png" alt="Bokningsbild">
            <?php } ?>
        </div>
    </center>
</body>
</html>