在 Twig 中进行 Unescape 或 html 解码（PHP 模板）

Unescape or html decode in Twig (PHP Templating)

提问by Eric Herlitz

I'm using twig 1.12.2. My code generates some elements from code-behind, when rendering these with the latest version of twig they get html-encoded

我正在使用树枝 1.12.2。我的代码从代码隐藏生成一些元素，当使用最新版本的树枝渲染这些元素时，它们会得到 html 编码

{% for item in files_folders %}
<tr class="{{ cycle(['tr_odd', 'tr_even'], loop.index) }}">
    <td><img src="../templates/images/sharepoint/{{ item.ContentType }}.gif" border="0" alt=""/></td>
    <td>{{ item.Link }}</td>
    <td>{{ item.Modified }}</td>
    <td>{{ item.FileSize }}</td>
    <td>{{ item.FileType }}</td>
</tr>
{% endfor %}

This will output this

这将输出这个

<tr class="tr_even">
    <td><img src="../templates/images/sharepoint/Document.gif" border="0" alt=""/></td>
    <td>&lt;a href=&#039;?download=/ddd.png&#039;&gt;ddd.png&lt;/a&gt;</td>
    <td>2013-03-04 17:47:38</td>
    <td>64.8 KB</td>
    <td>png</td>
</tr>
<tr class="tr_odd">
    <td><img src="../templates/images/sharepoint/Document.gif" border="0" alt=""/></td>
    <td>&lt;a href=&#039;?download=/asdasd.png&#039;&gt;asdasd.png&lt;/a&gt;</td>
    <td>2013-03-03 20:01:52</td>
    <td>66.04 KB</td>
    <td>png</td>
</tr>

When I debug and have a look at the data before it's sent to twig it is not escaped. I haven't found any alternative to {{ item.Link }} to render data as-is.

当我在将数据发送到树枝之前调试并查看数据时，它不会被转义。我还没有找到任何替代 {{ item.Link }} 来按原样呈现数据的方法。

Thanks

谢谢

回答by romainberger

You can use the rawfilter to make twig render raw html

您可以使用raw过滤器使树枝呈现原始 html

http://twig.sensiolabs.org/doc/filters/raw.html

http://twig.sensiolabs.org/doc/filters/raw.html

{% autoescape %}
    {{ var|raw }} {# var won't be escaped #}
{% endautoescape %}

回答by PR Whitehead

You should be careful with using |raw. Saying that the data is safe, means you are trusting it 100%.

使用 |raw 时应该小心。说数据是安全的，意味着您 100% 信任它。

Personally I would suggest using a custom twig filter:

我个人建议使用自定义树枝过滤器：

class CustomExtension extends \Twig_Extension 
{
    public function getFilters()
    {
        return array(
            new \Twig_SimpleFilter('unescape', array($this, 'unescape')),
        );
    }

    public function unescape($value)
    {
        return html_entity_decode($value);
    }
}

Add the following to your services.yml (or alternatively translate into xml).

将以下内容添加到 services.yml（或转换为 xml）。

 services:
     ha.twig.custom_extension:
     class: HA\SiteBundle\Twig\CustomExtension
     tags:
         - { name: twig.extension }

回答by Promo IL

Or http://twig.sensiolabs.org/doc/filters/raw.html

或http://twig.sensiolabs.org/doc/filters/raw.html

{% autoescape false %}
   {{ your_item }}{# your_item won't be escaped #}
{% endautoescape %}

回答by Juan De León

If you are using Drupal 8 and none of rawor autoscapeworks, this could happen because of the variable you're trying to print if it's a render array with a template holding a safe output (for example, a hl2brfilter).

如果您使用的是 Drupal 8 并且没有任何一个raw或autoscape工作，这可能是因为您尝试打印的变量是带有保存安全输出的模板（例如，hl2br过滤器）的渲染数组。

I that case, you would need to access the value through the render array and filter it, for instance:

在这种情况下，您需要通过渲染数组访问该值并对其进行过滤，例如：

{% autoescape false %}
  {{ item.content['#context']['value'] }}
{% endautoescape %}