Getting Taxonomy term name from target ID - D9 - drupal

Question

Getting Taxonomy term name from Taxonomy target ID:
I have a taxonomy term that accepts multiple values. It's rendered as a multiselectfield. I am trying to read the target ID of the field and figure the term name out of it using the below code in a preprocess function:
$granttype = $user_entity->field_user_grant_type->getValue();
foreach($granttype as $gt)
{
$granttype_name = \Drupal\taxonomy\Entity\Term::load($gt)->label();
}
dd($granttype_name);
$variables['grant_type'] = $granttype_name;
dd($granttype) shows the below output:
However, the foreach loop to figure out the term name is not working correctly.
dd($granttype_name) results as:
The website encountered an unexpected error. Please try again later.
TypeError: Illegal offset type in Drupal\Core\Entity\EntityStorageBase->load() (line 297 of core/lib/Drupal/Core/Entity/EntityStorageBase.php).
I am looping through the target ID and trying to get the term name. But it's not working. Any help pls?
UPDATE: I tried the below line of code:
$term = term::load($gt);
$name = $term->getName();
still no luck :( same error

Answer 1

Here is an example how to do this:
$grant_type = $user_entity->field_user_grant_type->entity;
if ($grant_type instanceof \Drupal\taxonomy\TermInterface) {
var_dump($grant_type->label());
}
If you have multiple referenced terms, use:
$grant_types = $user_entity->field_user_grant_types->referencedEntities();
foreach ($grant_types as $grant_type) {
var_dump($grant_type->label());
}
Explanation:
The generic way to get entity title is the Entity::label method
$term->label();
There is a helpful method Entity::referencedEntities to get relations.

Answer 2

First, you need to include
use Drupal\taxonomy\Entity\Term;
use Drupal\taxonomy\TermInterface;
Second, retrieve the value(s) stored in your field (field_user_grant_type) and store them in an array:
$myArray = array();
$granttype = $user_entity->get('field_user_grant_type')->getValue();
$granttype will now contain an array of arrays. Next, you need to gather the actual term IDs
foreach($granttype as $type){
$myArray[] = $type['target_id'];
}
Finally, loop through $myArray and fetch the term IDs stored there, and then use each ID to get its corresponding Term Name. Here, I store them in a new array called grantTypeNames
grantTypeNames = array();
foreach($myArray as $term_id){
$grantTypeNames[] = Term::load($term_id)->get('name')->value;
}
The array $grantTypeNames will now contain the term names you want. I hope that helps.