将多个产品添加到购物车（一次性多个帖子按钮）

Is it possible to post multiple add to cart buttons in javascript with single button click? Here is my code for single add to cart buttons:

<div class="buy_now" style="margin: 1em 0;">
    <?php echo functions::form_draw_form_begin('buy_now_form', 'post'); ?>
    <?php echo functions::form_draw_hidden_field('product_id', $product_id); ?>

   <?php if (!$catalog_only_mode) { ?>
    <div class="form-group">
      <label><?php echo language::translate('title_quantity', 'Quantity'); ?></label>
      <div style="display: flex">
        <div class="input-group">
          <?php echo (!empty($quantity_unit['decimals'])) ? functions::form_draw_decimal_field('quantity', isset($_POST['quantity']) ? true : 1, $quantity_unit['decimals'], 1, null) : (functions::form_draw_number_field('quantity', isset($_POST['quantity']) ? true : 1, 1)); ?>
          <?php echo !empty($quantity_unit['name']) ? '<div class="input-group-addon">'. $quantity_unit['name'] .'</div>' : ''; ?>
        </div>
        <div>
          <?php echo '<button class="processed" name="add_cart_product" value="true" type="submit"'. (($quantity <= 0 && !$orderable) ? ' disabled="disabled"' : '') .'>'. language::translate('title_add_to_cart', 'Add To Cart') .'</button>'; ?>
        </div>
      </div>
    </div>
    <?php } ?>

    <?php echo functions::form_draw_form_end(); ?>
  </div>

And I have another button, which I would like to add all items at once(it's doesnt do anything right now):

<?php echo '<button id="triggerAll" class="btn" name="add_cart_product_all" value="true" type="submit">'. language::translate('title_add_to_cart', 'Add To Cart') .'</button>'; ?>

No, you aren't able to make multiple POST requests with standard browser call. You'll have to do it with JavaScript which makes Ajax POST calls on the same page.

Found a solution:

<script>
$('#triggerAll').on('click',function(){
    $('.processed').trigger('click');
});
</script>