Question

I need to add a $ variable to an href url, I have tried all I can think of as well as searching the web. I have tried concatenating but nothing I do works $id contains the id number I want to pass

</form>
  <input type="button"
  name="add"
  value="New Sub-group"
  onclick="location.href='prodsub.php?id={$id}'"
  style="float: right; background-color:gray; color:#fff;" />

Thank you

Answer 1

If this is PHP, use:

onclick="location.href='prodsub.php?id=<?php echo $id; ?>'"