Code-Snippets-Functions/Execute a function on a child site/WooCommerce/change-out-of-stock-read-more-url.txt

add_filter( 'woocommerce_product_add_to_cart_url', 'out_of_stock_read_more_url', 50, 2 );
function out_of_stock_read_more_url( $link, $product  ) {
    // Only for "Out of stock" products
    if( $product->get_stock_status() == 'outofstock' ){

        // Here below we change the link
        $link = home_url("/");
    }
    return $link;
}