Radio button

Kode 

<?php
   if($_POST) {
       print_r($_POST);
   }
?>
<form action="upload_middle.php" method="POST">
<input type="radio" name="1" value="musik"><br> 
<input type="radio" name="1" value="historie" checked="checked"></br>
<input type="radio" name="1" value="kunst"></br></br>
<input type="submit" name"submit" value="vælg"></br>
</form>

Er det så ike bare en checkbox du skal bruge ?

<INPUT TYPE="CHECKBOX" name="1" value="musik">

Kode 

$_POST = array(
   'l' => 'historie'
);