Timber Twig function - WPML - get translation url by passing langcode

twig-function-wpml-get-translation-url-by-langcode.php

<?php

function add_twig_function() {

	function get_translation_url_by_langcode($target_langcode) {
		// docs: https://wpml.org/documentation/getting-started-guide/language-setup/custom-language-switcher/
		if ( function_exists('icl_get_languages') ) {
			$langlist = icl_get_languages();
			$url = '';
			foreach ($langlist as $item) {
				if ($item['language_code'] == $target_langcode ) {
					$url .= $item['url'];
				}
			}
			return $url;
		} else {
			return '#wpml-plugin-needs-to-be-active';
		}
	}

	add_filter( 'timber/twig', function( \Twig_Environment $twig ) {
		$twig->addFunction( new Timber\Twig_Function( 'get_translation_url_by_langcode', 'get_translation_url_by_langcode' ) );
		return $twig;
	} );
}

/* returned data from `icl_get_languages()` in each array item (example):
[id] => 27
[active] => 0
[native_name] => Svenska
[missing] => 0
[translated_name] => Svenska
[language_code] => sv
[country_flag_url] => http://yourdomain/wpmlpath/res/flags/sv.png
[url] => http://yourdomain/sv/active-page-slug
*/

# In Twig-template use like this: <a href="{{ get_translation_url_by_langcode(target_langcode) }}">{{ label }}</a>