How Do I Add a Custom Filter in WooCommerce Shop?

Adding a custom filter to your WooCommerce shop is a great way to improve the user experience for your customers. By allowing them to filter products by specific criteria, you can make it easier for them to find exactly what they’re looking for. In this article, we’ll show you how to add a custom filter to your WooCommerce shop.

First, you’ll need to create a new file in your child theme or plugin. We’ll call this file WooCommerce-custom-filter.php. In this file, we’ll add the following code:

This code will add a new taxonomy query to the default WooCommerce product query. This query will only return products that are in the “custom” category. You can change the category slug to anything you like.

Next, we need to add a new setting to our WooCommerce shop page. This setting will allow us to choose which category is used for the custom filter. To do this, we’ll add the following code to our WooCommerce-custom-filter.php file:

<?php
add_filter(
  'woocommerce_product_query_args',
  'custom_woocommerce_product_query_args' );

function custom_woocommerce_product_query_args( $args ) {
  $args['tax_query'][] = array(
  'taxonomy' => 'product_cat',
  'field' => 'slug',
  'terms' => 'custom', );

return $args; }

$new_settings[] = include( plugin_dirname( __FILE__ ) . 
  '/includes/class-wc-settings-page.php' );

return array_merge( $settings, $new_settings );
?>

In this code, we’re adding a new setting to the WooCommerce shop page settings.

We’re including a class file that contains the code for our new setting. You can find this class file in the /includes directory of our plugin or child theme.

Finally, we need to add some CSS to style our new setting on the WooCommerce shop page settings screen. We’ll add the following CSS to our WooCommerce-custom-filter.php file:

.form-table th { width: 300px; }

This CSS will make sure that our new setting is displayed correctly on the WooCommerce shop page settings screen