<?php /** * Copyright © Magento, Inc. All rights reserved. * See COPYING.txt for license details. */ namespace Magento\Tax\Model\System\Config\Source; class Algorithm implements \Magento\Framework\Option\ArrayInterface { /** * @var array */ protected $_options; /** * Initialize the options array */ public function __construct() { $this->_options = [ ['value' => \Magento\Tax\Model\Calculation::CALC_UNIT_BASE, 'label' => __('Unit Price')], ['value' => \Magento\Tax\Model\Calculation::CALC_ROW_BASE, 'label' => __('Row Total')], ['value' => \Magento\Tax\Model\Calculation::CALC_TOTAL_BASE, 'label' => __('Total')], ]; } /** * @return array */ public function toOptionArray() { return $this->_options; } }