如何在twig模板中var_dump变量？ [英] How to var_dump variables in twig templates?

问题描述

查看图层模式，只显示您所给予的内容是否正常，但您如何知道可用的内容？在TWIG中是否有列出所有定义的变量功能？有一种方法来转储变量？

View layer pattern where you only present what you have been given is fine and all, but how do you know what is available? Is there a "list all defined variables" functionality in TWIG? Is there a way to dump a variable?

我通过搜索找到的解决方案是定义一个函数，我可以使用我的<一个href =https://github.com/alkemann/AL13/tree/master/al13_debug>现有的php调试工具通过注入一个函数，但是我发现的所有引用包括这两行很好的代码，但是它没有指定放置它们的位置。根据他们需要一个 $ loader 变量定义的事实，我尝试过/app/config/autoload.php，但$ loader是错误的。

The solution I found by searching for it was to define a function where I can use my existing php debug tools by injecting a function, but all references I have found to that includes these nice two lines of code, but nowhere is it specified where to place them. Going by the fact that they need a $loader variable defined, I tried /app/config/autoload.php but the $loader there was the wrong kind. Where do I place the php code for adding a twig function?

推荐答案

从Twig 1.5开始，正确的答案是使用转储功能。 它在Twig文档中已完整记录。 以下是在Symfony2中启用此功能的文档。

As of Twig 1.5, the correct answer is to use the dump function. It is fully documented in the Twig documentation. Here is the documentation to enable this inside Symfony2.

{{ dump(user) }}

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