Body::getTypePlaceholders

protected function getTypePlaceholders(array $types = [])
{
	$placeholders = [];

	foreach($this->fields as $placeholder => $field)
	{
		if(isset($field['TYPE']) && (in_array($field['TYPE'], $types)) || empty($types) && !isset($this->excludedPlaceholders[$placeholder]))
		{
			$placeholders[$placeholder] = $placeholder;
		}
	}

	return $placeholders;
}