helper助手Html::ul的问题 [ 2.0 版本 ]

看yii2源码，这里不想被转义就应该用
Html::ul($arr, ['encode' => false]);

    /**
     * Generates an unordered list.
     * @param array|\Traversable $items the items for generating the list. Each item generates a single list item.
     * Note that items will be automatically HTML encoded if `$options['encode']` is not set or true.
     * @param array $options options (name => config) for the radio button list. The following options are supported:
     *
     * - encode: boolean, whether to HTML-encode the items. Defaults to true.
     *   This option is ignored if the `item` option is specified.
     * - separator: string, the HTML code that separates items. Defaults to a simple newline (`"\n"`).
     *   This option is available since version 2.0.7.
     * - itemOptions: array, the HTML attributes for the `li` tags. This option is ignored if the `item` option is specified.
     * - item: callable, a callback that is used to generate each individual list item.
     *   The signature of this callback must be:
     *
     *   
     *   function ($item, $index)
     *   
     *
     *   where $index is the array key corresponding to `$item` in `$items`. The callback should return
     *   the whole list item tag.
     *
     * See [[renderTagAttributes()]] for details on how attributes are being rendered.
     *
     * @return string the generated unordered list. An empty list tag will be returned if `$items` is empty.
     */
    public static function ul($items, $options = [])
    {
        $tag = ArrayHelper::remove($options, 'tag', 'ul');
        $encode = ArrayHelper::remove($options, 'encode', true);
        $formatter = ArrayHelper::remove($options, 'item');
        $separator = ArrayHelper::remove($options, 'separator', "\n");
        $itemOptions = ArrayHelper::remove($options, 'itemOptions', []);