Hver notar checkbox:
<form action="#" method ="POST">
<input type="checkbox" name="spurning1" value="svar1"> Ekki ég allavega.<br />
<input type="checkbox" name="spurning1" value="svar2"> Bara ég totally.<br />
<input type="checkbox" name="spurning1" value="svar3"> Bara stundum.<br />
</form>

<?php
echo "Þú hakaðir í " . $_POST['name'] . "<br />";
if($_POST['spurning1'] == 'svar1') {
	echo "Þú hakaðir í svar 1.";
} elseif($_POST['spurning1'] == 'svar2') {
	echo "Þú hakaðir í svar 2";
} elseif($_POST['spurning1'] == 'svar3') {
	echo "Þú hakaðir í svar 3";
}
?>

<?php
$checked = array();
if (isset($_POST['sub']))
{
  echo 'Þú valdir: ';
  $b=0;
  foreach($_POST as $id=>$do)
  {
  if ($id != 'sub')
    {    
    $checked[$b] = $id;
    echo $id.' ';
    $b++;
    }
  }
}
?>  
<form action="" method ="POST">
<?php
for($i=1;$i < 11; $i++)
{
foreach($checked as $fle)
  {
  if ($i == $fle) $check = 1;
  }
?>
<input type="checkbox" name="<?php echo $i; ?>" value="d"<?php if ($check == 1) echo ' checked'; ?> /> Spamm comment nr. <?php echo $i; ?><br />
<?php $check = 0; } ?>
<input type="submit" name="sub" value="Fela" /><br />
</form>