Display category name on product page Opencart

Display category name on product page Opencart

Put below code in your product.tpl file

<?php
$category = $this->model_catalog_product->getCategories($product_id);
if ($category){
  $category_array = $this->model_catalog_category->getCategory($category[0]['category_id']);
  echo $category_array['name'];
}
?>