Strip producttitles after certain number of characters

add_filter('the_title', 'sitiweb_shorten_woo_product_title', 10, 2);
function sitiweb_shorten_woo_product_title($title, $id)
{
  $link = get_the_permalink($id);
  $stip_after = 45; // strip after 45 characters.
  if (is_shop() && get_post_type($id) === 'product') {

    if (strlen($title) > $stip_after) {


      return '<a href="' . $link . '" class="link-custom-product">' . substr($title, 0, $stip_after) . ' &hellip;</a>'; // change last number to the number of characters you want
    }
    return '<a href="' . $link . '" class="link-custom-product">' . $title . '</a>';
  }
  return $title;
}