woocommerce_product_filters │ filter-hook │ WC 1.0

Usage

add_filter( 'woocommerce_product_filters', 'wp_kama_woocommerce_product_filters_filter' );

/**
 * Function for `woocommerce_product_filters` filter-hook.
 * 
 * @param  $output 
 *
 * @return 
 */
function wp_kama_woocommerce_product_filters_filter( $output ){

	// filter...
	return $output;
}

$output

-

Where the hook is called

echo apply_filters( 'woocommerce_product_filters', $output ); // WPCS: XSS ok.

Where the hook is used in WooCommerce