The Dropdown partial file

_dropdown.htm

<div class="dropdown dropdown-fixed">
    <button
        id="parentDropdown"
        type="button"
        class="btn btn-default oc-icon-mobile"
        data-toggle="dropdown">
        <?php echo $variants[$this -> variant_id] ?> <?php if (count($variants) > 1): ?><span class="caret"><?php endif ?>
    </button>
    <?php if (count($variants) > 1): ?>
    <ul class="dropdown-menu" role="menu" data-dropdown-title="Select variant">
      <?php foreach ($variants as $k => $variant): ?>
        <?php if ($k != $this -> variant_id): ?>
          <li role="presentation">
            <a
              data-request="onVariantChange"
              data-request-data="index: <?= $k ?>"
              data-request-before-update="$('#parentDropdown').text();"
              data-request-update="dropdown: '#dropdown-variant'"
              data-stripe-load-indicator
              role="menuitem"
              tabindex="-1"
              href="#"
              class="oc-icon-android">
                <?= $variant ?>
            </a>
          </li>
        <?php endif ?>
      <?php endforeach ?>
    </ul>
    <?php endif ?>
</div>