can i pass my php code to twig code of timber - wordpress

Question

I would like to know if I can convert any types of PHP code to twig, what I want to know is, for example, whether I can pass the code.
<?php
if (ICL_LANGUAGE_CODE == 'in'):?
to
{{ lang.en }}
Is there a way to add any PHP code and turn it into a twig and recognize it?
I use the Timber template for WordPress.

Answer 1

There is a good way to pass your functions (more correctly, register the function to Twig).
Using Timber Hook: timber/twig
There is a class in filter hook timber/twig could help us pass functions to Twig. It calls Timber\Twig_Function.
new Timber\Twig_Function(
'function_name_that_will_be_called_in_Twig',
'function_name_in_php'
);
// OR
new Timber\Twig_Function(
'function_name_that_will_be_called_in_Twig',
function( $input ) {
// anonymous function is ok too.
}
);
functions.php
add_filter( 'timber/twig', 'add_to_twig' );
function hello_in_php( $name = 'world' ) {
$hello = 'Hello ';
$hello .= $name;
return $hello;
}
function add_to_twig( $twig ) {
$func = new Timber\Twig_Function('hello', 'hello_in_php');
$filter = new Timber\Twig_Function('introduce', function( $name ) {
return "I'm ${name}!";
});
$twig->addFunction($func); //Registering a pre-defined function
$twig->addFunction($filter); //Registering a filter function
return $twig;
}
index.twig:
<p id='a'>{{ hello() }}</p>
<p id='b'>{{ hello('who?') }}</p>
<p id='c'>{{ "Batman"|introduce }}</p>
Result is:
<p id='a'>Hello World</p>
<p id='b'>Hello who?</p>
<p id='c'>I'm Batman!</p>
Source: https://timber.github.io/docs/guides/extending-timber/#adding-functionality-to-twig

Answer 2

You mean something like this comparison ?
{% if constant('ICL_LANGUAGE_CODE') == 'en' %}
{# your output here #}
{% endif %}