Magento 2: Display configurable product attribute value counts on product listing

Follow below steps to display configurable product specific attribute values count on product listing page in Magento 2.

First, you need to override vendor/magento/module-catalog/Block/Product/ListProduct.php file in your existing module.

To override this file:

Create new file ‘di.xml’ at this path -> app/code/Vender/Modulename/etc/. Add the following code in this new file:

 <?xml version="1.0"?>
<config xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="urn:magento:framework:ObjectManager/etc/config.xsd">
<preference for="Magento\Catalog\Block\Product\ListProduct" type="Vender\Modulename\Block\Product\ListProduct" />
</config>

<?xml version="1.0"?>

</config>

Then create a new file named ‘ListProduct.php’ at app/code/Vender/Modulename/Block/Product/.

Add the following code in this new file:

<?php
namespace Vender\Modulename\Block\Product;

class ListProduct extends \Magento\Catalog\Block\Product\ListProduct {

public function getProductDetailsHtml(\Magento\Catalog\Model\Product $product) {
       $html = '';
       $renderer = $this->getDetailsRenderer($product->getTypeId());
        if ($renderer) {
            if ($product->getTypeId() == \Magento\ConfigurableProduct\Model\Product\Type\Configurable::TYPE_CODE) {
                $options = array();
                $productColor = array();
                $data = $product->getTypeInstance()->getConfigurableOptions($product);
                foreach ($data as $attr) {
                    foreach ($attr as $p) {

                        if ($p['attribute_code'] == 'color') {
                            if (!in_array($p['option_title'], $productColor)) {
                                $productColor[] = $p['option_title'];
                            }
                        }
                    }
                 }
                $html = '<p> ' . count($productColor) . ' </p>';
             }
             $renderer->setProduct($product);
             return $html . $renderer->toHtml();
         }
         return '';
     }

}

?>

<?php

namespace Vender\Modulename\Block\Product;

class ListProduct extends \Magento\Catalog\Block\Product\ListProduct {

public function getProductDetailsHtml(\Magento\Catalog\Model\Product $product) {

$html = '';

$renderer = $this->getDetailsRenderer($product->getTypeId());

if ($renderer) {

if ($product->getTypeId() == \Magento\ConfigurableProduct\Model\Product\Type\Configurable::TYPE_CODE) {

$options = array();

$productColor = array();

$data = $product->getTypeInstance()->getConfigurableOptions($product);

foreach ($data as $attr) {

foreach ($attr as $p) {

if ($p['attribute_code'] == 'color') {

if (!in_array($p['option_title'], $productColor)) {

$productColor[] = $p['option_title'];

}

$html = '<p> ' . count($productColor) . ' </p>';

}

$renderer->setProduct($product);

return $html . $renderer->toHtml();

}

return '';

}

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