There’s the short tag version of your code, which is now completely acceptable to use despite antiquated recommendations otherwise:
<input type="hidden" name="type" value="<?= $var ?>" >
which (prior to PHP 5.4) requires short tags be enabled in your php configuration. It functions exactly as the code you typed; these lines are literally identical in their internal implementation:
<?= $var1, $var2 ?>
<?php echo $var1, $var2 ?>
That’s about it for built-in solutions. There are plenty of 3rd party template libraries that make it easier to embed data in your output, smarty is a good place to start.