Question

In my template I want to output the server timezone.

My template has something like

{{ getservertimezone }}

Then in the services.yml config for that bundle I have

my.twig.extension:
    class: My\WebsiteBundle\Extensions\Twig\SomeTemplateHelper
    tags:
           - { name: twig.extension }

And my SomeTemplateHelper looks like

namespace My\WebsiteBundle\Extensions\Twig;

class SomeTemplateHelper extends \Twig_Extension
{

    public function getFilters() 
    {
        return array(
            'getservertimezone'  => new \Twig_Filter_Method($this, 'getServerTimeZone'),
        );
    }

    
    public function getServerTimeZone()
    {
        if (date_default_timezone_get()) {
            return date_default_timezone_get();
        } else if (ini_get('date.timezone')) {
            return ini_get('date.timezone');
        } else {
            return false;
        }
    }

    public function getName()
    {
        return 'some_helper';
    }
    
}

But I can’t call this method unless it’s used like a filter: {{ someval | getservertimezone }}; is there a way to just do a straight {{ getservertimezone() }} call?

Answer 1

Use getFunctions() instead of getFilters()

public function getFunctions()
{
    return array(
        new \Twig_SimpleFunction('server_time_zone', array($this, 'getServerTimeZone')),
    );
}

Twig filters are used to filter some value.

{{ "some value" | filter_name_here }}

Btw, you can define both filters and functions in the same class.