How to Call Static Function with parameters In Twig Template 3.0

PHP
#1

How to call my static function with parameters in the twig template 3.0 without going through the controller?

For exemple:

{{ Helper::url('/link') }}

My Static Class:

public static function url(string url) {
 $host = $_SERVER['HTTP_HOST'] == 'localhost' ? URL_TEST : URL_BASE;

if (str_starts_with($url, '/')):
    return $host . $url;
endif;
return $host . '/' . $url;
}

}
#2

Looks from the documentation that it would be {% Helper::url('/link') %} ?

#3

it doesn’t work like that

#4

Well, logically you’d put the call in the controller, and just pass the static template variable to the template. Is there a particular reason you don’t?

#5

You can’t call PHP functions/classes from Twig directly, you’d need to define them in Twig first.

$twig = new Environment(...);
$twig->addFunction(
  new TwigFunction('url', function (string $url) { return Helper::url($url); })
);

And then in your template you can do:

{{ url('/link') }}

(url here is the first parameter passed to the TwigFunction class)

PS If you’re on PHP 7.4 or higher you can replace this

function (string $url) { return Helper::url($url); }

with this

fn (string $url) => Helper::url($url)

Same thing, different syntax.

2 Likes
#6

Why doesn’t it work like this in the template as I said the twig template is diferent

#7

Thank you very much, it worked perfectly well

1 Like