namespace Drupal\Core\Field\Plugin\Field\FieldType;
-use Drupal\Component\Utility\Unicode;
use Drupal\Core\Field\FieldDefinitionInterface;
use Drupal\Core\Field\FieldStorageDefinitionInterface;
use Drupal\Core\TypedData\DataDefinition;
$values = parent::generateSampleValue($field_definition);
$suffix_length = $field_definition->getSetting('max_length') - 7;
foreach ($values as $key => $value) {
- $values[$key] = 'http://' . Unicode::substr($value, 0, $suffix_length);
+ $values[$key] = 'http://' . mb_substr($value, 0, $suffix_length);
}
return $values;
}