Drupal Commerce: Can't get variation type machine name from product variation object - drupal

Question

I successfully receive product variation object by its id
$variation = \Drupal::entityTypeManager()->getStorage('commerce_product_variation')->load(8);
Then I successfully receive its structure like
(
[variation_id] => Array
(
[x-default] => 8
)
[type] => Array
(
[x-default] => router
)
[uuid] => Array
(
[x-default] => a44c2c31-2131-4c99-82a6-856b566d97cf
)
...
by print_r() like
echo '<pre>';
print_r($variation);
echo '</pre>';
Now if I try to get SKU through $variation->sku->value, I get it
But if I try to get variation type machine name through $variation->type->value I get nothing (and gettype($variation->type->value) returns NULL).
Still, we see it in the structure with the value router
Why and how to get the machine name ?

Answer 1

It's strange: the print_r() shows the way is $variation->type->value
But I've just successfully got it by
$variation->type[0]->target_id

Answer 2

This answer may be useful for someone who stumbles upon this post in the future
To get the machine name of the variation type from a product variation object in Drupal 9 Commerce, you can use the following code:
<?php
use Drupal\commerce\PurchasableEntityInterface;
// Load the product variation object.
$product_variation = ...;
// Ensure the object is a valid product variation.
if ($product_variation instanceof PurchasableEntityInterface) {
// Get the variation type.
$variation_type = $product_variation->getPurchasedEntity()->bundle();
// Get the variation type machine name.
$variation_type_machine_name = $variation_type->id();
// Use the variation type machine name as needed.
...
}
This code uses the PurchasableEntityInterface to ensure that the loaded object is a valid product variation. The getPurchasedEntity() method is used to get the underlying entity that represents the variation, and the bundle() method is used to get the variation type. The variation type machine name can then be obtained using the id() method.