ProductSelectSerializer.php

<?php

namespace WPDesk\Forms\Serializer;

use WPDesk\Forms\Serializer;

/**
 * When serializing product select data lets also write product names in keys.
 *
 * @package WPDesk\Forms\Serializer
 */
class ProductSelectSerializer implements Serializer {
	public function serialize( $value ) {
		$products_with_names = [];
		if ( is_array( $value ) ) {
			foreach ( $value as $product_id ) {
				$product = wc_get_product( $product_id );
				if ( $product ) {
					$name                         = $product->get_formatted_name();
					$products_with_names[ $name ] = $product_id;
				}
			}
		}

		return $products_with_names;
	}

	public function unserialize( $value ) {
		return $value;
	}

}