Twig:如何在自定义函数中手动转义? [英] Twig: How can I manually escape inside a custom function?

问题描述

我编写了自己的输出 HTML 的 Twig 函数，所以我将 is_safe 设置为 html 以便 Twig 知道不会转义我的函数的输出.

I wrote my own Twig function that outputs HTML, so I have is_safe set to html so that Twig knows not to escape the output my function.

但是，我的函数需要参数.其中一个参数直接放在输出中.我想在输出它之前转义它.所以看来我只需要能够在输出它之前手动转义选项值.

However, my function takes arguments. One of the arguments is placed in the output directly. I want to escape this before outputting it. So it seems I just need to be able to manually escape the option value before outputting it.

我找不到如何执行此操作.有人知道吗?

I can't find how to do this. Anyone know?

推荐答案

诀窍是存储树枝环境，然后传递给 twig_escape_filter

The trick is to store the twig enviroment which in turn is passed to twig_escape_filter

class TournExtension extends \Twig_Extension
{
    protected $env;

    public function initRuntime(\Twig_Environment $env)
    {
        parent::initRuntime($env);
        $this->env = $env;
    }
    protected function escape($string)
    {
        return twig_escape_filter($this->env,$string);
    }

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