Ive just designed my first contact form for my website so people can sign up to sell tickets to the event but I get this error

Fatal error: Function name must be a string in /home/insomnia/public_html/contactformprocess.php on line 10

I don't understand why I am getting this error

here is the PHP code

<?php

/* Subject and Email Variables */

$emailSubject = 'Insomnia All Ages Promoters';
$webMaster = 'aaron@superbsoundentertainment.com';

/* Gathering Data Variables */

$nameField = $_POST('name');
$emailField = $_POST('email');
$mobileField = $_POST('mobile');
$schoolField = $_POST('school');
$dobField = $_POST('dob');
$addressField = $_POST('address');
$whyField = $_POST('why');

$body = <<<EOD
<br><hr><br>
Name: $name <br>
Email: $email <br>
Mobile: $mobile <br>
School: $school <br>
DOB: $dob <br>
Address: $address <br>
Why: $why <br>
EOD;

$headers = "From: $email\r\n";
$headers .= "Content-type: text/html\r\n";
$success = mail($webMaster, $emailSubject, $body, $headers);

/* Results rendered as HTML */

$theResults = <<<EOD
<html>
<head>
<title>JakesWorks - travel made easy-Homepage</title>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
<style type="text/css">
<!--
body {
background-color: #f1f1f1;
font-family: Verdana, Arial, Helvetica, sans-serif;
font-size: 12px;
font-style: normal;
line-height: normal;
font-weight: normal;
color: #666666;
text-decoration: none;
}
-->
</style>
</head>

<div>
<div align="left">Thank you for signing up! We will be in touch very soon! Kind regards the team at Superb Sound Entertainment</div>
</div>
</body>
</html>
EOD;
echo "theResults";


?>

Also here is a link to the website insomniau18s.com

Please Help

Kind Regards
Aaron