Decoding JSON in Twig is possible with the help of custom Twig extensions. Here's how you can do it:
namespace Acme\DemoBundle\Twig\Extension; use Symfony\Component\DependencyInjection\ContainerInterface; use \Twig_Extension; class VarsExtension extends Twig_Extension { protected $container; public function __construct(ContainerInterface $container) { $this->container = $container; } public function getName() { return 'some.extension'; } public function getFilters() { return array( 'json_decode' => new \Twig_Filter_Method($this, 'jsonDecode'), ); } public function jsonDecode($str) { return json_decode($str); } }
Add this to your Services.xml file:
<service>
In your Twig template, you can use the | json_decode filter like this:
{% set obj = form_label(category) | json_decode %}
This will decode the JSON string in the form_label(category) variable and assign the decoded object to obj.
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