functions.md

Twig functions

• attribute 需要动态的调取某个对象的方法或者数组的key的值

    {{ attribute(object, method) }}
    {{ attribute(object, method, arguments) }}
    {{ attribute(array, item) }}
    // 判断是否存在
    {{ attribute(object, method) is defined ? 'Method exists' : 'Method does not exist' }}
  

• template_from_string获取字符串模板

    {{ include(template_from_string(certificate.code)) }}
    //默认不开启
    # app/config/services.yml
    twig.extension.loader:
        class: Twig_Extension_StringLoader
        tags:
            - { name: 'twig.extension' }