public static function by_spoken_languages($language, $format = 'array') { $value = self::filter_value($language); $value = WPMOLY_L10n::get_language_native_name($value); $meta_query = self::by_interval('spoken_languages', $value, $strict = false, $filter = false); if ('sql' === $format) { $meta_query = self::get_sql($meta_query); } return $meta_query; }