WooCommerce Extra Product Options (By ThemeHigh)

add_filter( 'wpo_get_item_by_product', function ( $item, $item_data, $product ) {
    if ( empty( $item_data['thwepo_options'] ) ) {
        return $item;
    }

    $item['thwepo_options']                              = $item_data['thwepo_options'];
    $item['thwepo-original_price']                       = $item_data['thwepo-original_price'];

    return $item;
}, 10, 3 );

add_filter( 'wpo_update_cart_cart_item_meta', function ( $cart_item_meta, $item, $items ) {
    if ( empty( $item['thwepo_options'] ) ) {
        return $cart_item_meta;
    }

    $cart_item_meta['thwepo_options']        = $item['thwepo_options'];
    $cart_item_meta['thwepo-original_price'] = $item['thwepo-original_price'];

    return $cart_item_meta;
}, 10, 3 );

add_filter( 'wpo_update_cart_loaded_product', function ( $loaded_product, $cart_item ) {
    if ( empty( $cart_item['thwepo_options'] ) ) {
        return $loaded_product;
    }

    $loaded_product['thwepo_options']        = $cart_item['thwepo_options'];
    $loaded_product['thwepo-original_price'] = $cart_item['thwepo-original_price'];

    $loaded_product['readonly_custom_meta_fields_html'] = wc_get_formatted_cart_item_data($cart_item);

    return $loaded_product;
}, 10, 2 );

add_filter( 'wpo_get_item_by_product', function ( $item, $item_data, $product ) {

if ( empty( $item_data['thwepo_options'] ) ) {

return $item;

}

$item['thwepo_options'] = $item_data['thwepo_options'];

$item['thwepo-original_price'] = $item_data['thwepo-original_price'];

return $item;

}, 10, 3 );

add_filter( 'wpo_update_cart_cart_item_meta', function ( $cart_item_meta, $item, $items ) {

if ( empty( $item['thwepo_options'] ) ) {

return $cart_item_meta;

}

$cart_item_meta['thwepo_options'] = $item['thwepo_options'];

$cart_item_meta['thwepo-original_price'] = $item['thwepo-original_price'];

return $cart_item_meta;

}, 10, 3 );

add_filter( 'wpo_update_cart_loaded_product', function ( $loaded_product, $cart_item ) {

if ( empty( $cart_item['thwepo_options'] ) ) {

return $loaded_product;

}

$loaded_product['thwepo_options'] = $cart_item['thwepo_options'];

$loaded_product['thwepo-original_price'] = $cart_item['thwepo-original_price'];

$loaded_product['readonly_custom_meta_fields_html'] = wc_get_formatted_cart_item_data($cart_item);

return $loaded_product;

}, 10, 2 );