usort($customers_list, function($a,$b) use ($sortby_name){
	$a_temp = mb_strtolower($a[$sortby_name]);
	$b_temp = mb_strtolower($b[$sortby_name]);

	if(preg_match_all("/Đ/", $a_temp) || preg_match_all("/đ/", $a_temp)){
		$a_temp = str_replace('đ', 'dz', $a_temp); // str_replace('/\đ/g', 'd', );
	}

	if(preg_match_all("/Đ/", $b_temp) || preg_match_all("/đ/", $b_temp)){
		$b_temp = str_replace('đ', 'dz', $b_temp); // str_replace('/\đ/g', 'd', );
	}
	return iconv('UTF-8', 'ASCII//TRANSLIT', $a_temp) > iconv('UTF-8', 'ASCII//TRANSLIT', $b_temp);
});