在OpenCart中，如何获取当前的产品ID，名称和图像？

In opencart, i need to get these infos about the current product:

• Id
• Name
• Image

In magento, I only do this, but in opencart, i just don't know:

<?php if($_product = Mage::registry('current_product')): ?>

  <?php echo $_product->getId() ?>
  <?php echo $_product->getName() ?>
  <?php echo $_product->getImageUrl() ?>

<?php endif; ?>

I endup using:

<?php echo $product_id; ?> //returns product id
<?php echo $heading_title; ?> //returns product name
<?php echo $popup; ?> //returns product image