如何在Twig中访问类常量? [英] How to access class constants in Twig?

问题描述

我的实体类中有一些类常量，例如:

I have a few class constants in my entity class, e.g.:

class Entity {
    const TYPE_PERSON = 0;
    const TYPE_COMPANY = 1;
}

在通常的PHP中，我经常执行if($var == Entity::TYPE_PERSON)，而我想在Twig中执行这种操作.有可能吗?

In normal PHP I often do if($var == Entity::TYPE_PERSON) and I would like to do this kind of stuff in Twig. Is it possible?

推荐答案

{% if var == constant('Namespace\\Entity::TYPE_PERSON') %}
{# or #}
{% if var is constant('Namespace\\Entity::TYPE_PERSON') %}

请参见 constant函数和 constant测试.

See documentation for the constant function and the constant test.

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