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Do you sometimes wish you could just do a var_dump inside a Twig template while trying to debug some code? Well Twig comes with its own Debug extension to allow you to do just that.
Firstly, add the following to your /app/config/config_dev.yml (you don’t want to do this on Prod):
twig:
debug: 1
services:
debug.twig.extension:
class: Twig_Extensions_Extension_Debug
tags: [{ name: 'twig.extension' }]Now inside your Twig templates you can “var_dump” variables using the built-in Twig Debug:
{% debug nameOfVariable %} Happy debugging!
Sometimes you don’t want to render all of the elements of a form using form_rest but you’re still required to render the hidden CSRF Token on a Symfony2 form.
To render only the CSRF Token, use the following:
{{ form_row(form._token) }} Use the following code to check if a variable exists within a Twig template:
{% if theVariable is defined %} 
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