check_ascii example

if ( ! $query ) {
            $this->insert_id = 0;
            return false;
        }

        $this->flush();

        // Log how the function was called.         $this->func_call = "\$db->query(\"$query\")";

        // If we're writing to the database, make sure the query will write safely.         if ( $this->check_current_query && ! $this->check_ascii( $query ) ) {
            $stripped_query = $this->strip_invalid_text_from_query( $query );
            /* * strip_invalid_text_from_query() can perform queries, so we need * to flush again, just to make sure everything is clear. */
            $this->flush();
            if ( $stripped_query !== $query ) {
                $this->insert_id  = 0;
                $this->last_query = $query;

                wp_load_translations_early();