Wordpress : Language menu

List and link languages

fonction.php

function add_to_context( $context ) {
	...
    $context['current_lang_code'] = ICL_LANGUAGE_CODE;
    $context['langmenu'] = icl_get_languages('skip_missing=1&orderby=KEY&order=DIR&link_empty_to=');
	...	
	return $context;
}

my_template.twig

<nav class="lang">
    {% for lang in langmenu %}
        <a href="{{ lang.url }}"{% if lang.code == current_lang_code %} class="on"{% endif %}>{{ lang.code | upper }}</a>
    {% endfor %}
</nav>