twigHow to use a PHP function in Twig?

Twig is a templating language for PHP, and it's possible to use PHP functions in Twig. To do this, you need to register the function as a Twig extension.

Example code

$twig = new Twig_Environment($loader);
$twig->addExtension(new Twig_Extension_StringLoader());
$twig->addFunction(new Twig_SimpleFunction('my_php_function', 'my_php_function'));

This code registers the my_php_function function as a Twig extension. Now you can use it in Twig templates like this:

{{ my_php_function('foo', 'bar') }}

Code explanation

1. $twig = new Twig_Environment($loader); - creates a new Twig environment.
2. $twig->addExtension(new Twig_Extension_StringLoader()); - adds the StringLoader extension to the Twig environment.
3. $twig->addFunction(new Twig_SimpleFunction('my_php_function', 'my_php_function')); - registers the my_php_function function as a Twig extension.
4. {{ my_php_function('foo', 'bar') }} - calls the my_php_function function in a Twig template.

Helpful links

• Twig Documentation
• Twig Extensions

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