[Plugin: Polylang] Possibility to inactivate language

I am not sure I catched what you want to do.

First you must know that the ‘language’ is a taxonomy. To get the list of languages, I always use the function ‘get_languages_list’ that you can find in base.php. This function is in fact a helper function which uses get_terms. So you can use all filters applied by this function:
* get_terms_args
* get_terms
* terms_clauses

Maybe the first one is the one you want. You can add an ‘exclude’ argument.

Ok Chouby.
I see those points tomorrow.
I wrote here if I found a solution who can add onto Polylang.

I have find something.

Into base.php, I change the function get_language_list in line 25

function get_languages_list($hide_empty = false) {
		$lgtonotshow='';
		if(!is_admin()){
			$termslg=get_terms('language', array('hide_empty'=>true, 'orderby'=>'term_group', 'order'=>'ASC'));
		foreach($termslg as $termlg){
			if($termlg->term_group>999) $lgtonotshow .= $termlg->term_id.',';
		}
		}

		return get_terms('language', array('hide_empty'=>$hide_empty, 'orderby'=>'term_group', 'exclude'=>$lgtonotshow ));
	}

I exclude all of term who are superior or egal at 1000 in term_group (order for PolyLang).
That’s works !

For prevent some bugs, don’t make same term_group for 2 languages.
At the start, I try to make $termlg->term_group==0 but when 2 lang have the same term_group, they disappear.

I hope this will help someone else.