我已经构建了一个 twig 扩展来做一些事情，其中​​之一就是渲染一个模板.如何从 twig 扩展内部访问引擎环境并调用 Render 方法?

I have built a twig extension to do some things and one of them is render a template. How can I access from inside the twig extension the engine environment and call the Render method?

推荐答案

您可以定义扩展，使其需要环境.Twig 会自动将其传递给函数.

You can define the extension so that it needs the environment. Twig will automatically pass it to the function.

use TwigEnvironment;
use TwigTwigFunction;

public function getFunctions()
{
    return [
        new TwigFunction(
            'myfunction',
            [$this, 'myFunction'],
            ['needs_environment' => true]
        ),
    ];
}

public function myFunction(Environment $environment, string $someParam)
{
    // ...
}

对于旧版本的 Twig

public function getFunctions()
{
    return array(
        new Twig_SimpleFunction(
            'myfunction',
            array($this, 'myFunction'),
            array('needs_environment' => true)
        ),
    );
}

public function myFunction(Twig_Environment $environment, string $someParam)
{
    // ...
}