How can I access all values of a multi-value field?

Question

I am using Drupal 8 for a project for learning purposes. In my case I want to access to a field which contains multiple values, but I can't find how to do that. For example for a single value field I can access it like this:

kint($variables['node']->field_name->value);

But how can I get all the values of field which allows more than one value?

Answer 1

To get all values of a multi-value field:

$node = $variables['node'];
$values = array();
foreach ($node->field_name->getValue() as $value) {
  if (!empty($value['value'])) {
    $values[] = $value['value'];
  }
}

OR

$node = $variables['node'];
$values = array();
foreach ($node->field_name as $item) {
  if (!empty($item->value)) {
    $values[] = $item->value;
  }
}