Twig 1.24没有转储功能

Question

I need the dump function to be able to troubleshoot a template. I see that dump function is available in 1.5, I have 1.24

When I print the twig version with

The current version is {{ constant('Twig_Environment::VERSION') }}

I get 1.24.0. But when I use the dump function:

{{ dump() }}

I get a Slim Application Error:

Type: Twig_Error_Syntax
Message: Unknown "dump" function in "template.html.twig" at line 15.

What did I do wrong?

Answer 1

You should add debug extension to your twig environment manually

$twig->addExtension(new Twig_Extension_Debug());