Show images for the sub-categories in the opencart version 1.5+

Show images for the sub-categories in the opencart version 1.5+. If you are looking for 2.3 then: Show images for the sub-categories in the opencart version 2.3

Find lines below on catalog/controller/product/category.php

$this->data['categories'][] = array(
	'name'  => $result['name'] . ($this->config->get('config_product_count') ? ' (' . $product_total . ')' : ''),
	'href'  => $this->url->link('product/category', 'path=' . $this->request->get['path'] . '_' . $result['category_id'] . $url)
);

Replace with the following code:

$this->data['categories'][] = array(
   'name'  => $result['name'] . ($this->config->get('config_product_count') ? ' (' . $product_total . ')' : ''),
   'image'=>$this->model_tool_image->resize($result['image'], 100,100),
   'href'  => $this->url->link('product/category', 'path=' . $this->request->get['path'] . '_' . $result['category_id'] . $url)
);

Find following lines of code at catalog\view\theme\default\template\product\category.tpl

<?php if ($categories) { ?>
  <h2><?php echo $text_refine; ?></h2>
  <div class="category-list">
    <?php if (count($categories) <= 5) { ?>
    <ul>
      <?php foreach ($categories as $category) { ?>
      <li><a href="<?php echo $category['href']; ?>"><?php echo $category['name']; ?></a></li>
      <?php } ?>
    </ul>
    <?php } else { ?>
    <?php for ($i = 0; $i < count($categories);) { ?>
    <ul>
      <?php $j = $i + ceil(count($categories) / 4); ?>
      <?php for (; $i < $j; $i++) { ?>
      <?php if (isset($categories[$i])) { ?>
      <li><a href="<?php echo $categories[$i]['href']; ?>"><?php echo $categories[$i]['name']; ?></a></li>
      <?php } ?>
      <?php } ?>
    </ul>
    <?php } ?>
    <?php } ?>
  </div>
  <?php } ?>

Replace with following lines of code:

<?php if ($categories) { ?>
  <h2><?php echo $text_refine; ?></h2>
  <div class="category-list">
    <?php if (count($categories) <= 5) { ?>
    <ul>
      <?php foreach ($categories as $category) { ?>
      <li><a href="<?php echo $category['href']; ?>">
          <?php if($category['image']){ ?>
          <img src="<?php echo $category['image']; ?>" /><br>
          <?php } ?>
          <?php echo $category['name']; ?></a></li>
      <?php } ?>
    </ul>
    <?php } else { ?>
    <?php for ($i = 0; $i < count($categories);) { ?>
    <ul>
      <?php $j = $i + ceil(count($categories) / 4); ?>
      <?php for (; $i < $j; $i++) { ?>
      <?php if (isset($categories[$i])) { ?>
      <li><a href="<?php echo $categories[$i]['href']; ?>">
          <?php if($category['image']){ ?>
          <img src="<?php echo $category['image']; ?>" /><br>
          <?php } ?>
          <?php echo $categories[$i]['name']; ?></a></li>
      <?php } ?>
      <?php } ?>
    </ul>
    <?php } ?>
    <?php } ?>
  </div>
  <?php } ?>

Save and things are done you will be able to see the pictures of the sub-categories
For demo visit: https://webocreation.com/nepalbuddha/index.php?route=product/category&path=20