';
function form1($size) {
echo '
Size: ';
}
function form2($size) {
echo '
';
for($i=0; $i < $size; ++$i) {
echo '';
}
echo '
';
}
if($submit) {
$size = $_POST['size'];
if($size == "" || !ctype_digit($size) || $size > 12 || $size < 1) {
print "size must be an integer between 1 and 12 (inclusive)";
print "
";
}
else { $step += 1;
}
}
switch($step) {
case 2:
form2($size);
break;
default:
form1($size);
}
echo '
';
?>