This code snippet is intended to enable WooCommerce product attributes in the SEO search appearance. It works specifically with the All in One SEO (AIOSEO) plugin for WooCommerce. By returning true, all product attributes can be indexed by search engines, which could help improve search engine optimization (SEO) and product visibility. The ‘aioseo_woocommerce_product_attributes’ is a filter hook provided by the AIOSEO plugin, and by attaching the ‘__return_true’ function to this hook, we instruct it to include product attributes in the SEO meta data.
PHP
add_filter( 'aioseo_woocommerce_product_attributes', '__return_true' );