// Move comment field to bottom
        function wpb_move_comment_field_to_bottom( $fields = array(
                'author' =>
                    '<p class="comment-form-author"><label for="author">' . __( 'Name', 'domainreference' ) . '</label> ' .
                    ( $req ? '<span class="required">*</span>' : '' ) .
                    '<input id="author" name="author" type="text" value="' . esc_attr( $commenter['comment_author'] ) .
                    '" size="30"' . $aria_req . ' /></p>',

                  'email' =>
                    '<p class="comment-form-email"><label for="email">' . __( 'Email', 'domainreference' ) . '</label> ' .
                    ( $req ? '<span class="required">*</span>' : '' ) .
                    '<input id="email" name="email" type="text" value="' . esc_attr(  $commenter['comment_author_email'] ) .
                    '" size="30"' . $aria_req . ' /></p>'
                );
            ) {
            );
            $comment_field = $fields['comment'];
            unset( $fields['comment'] );
            $fields['comment'] = $comment_field;
            return $fields;
        }

        add_filter( 'comment_form_fields', 'wpb_move_comment_field_to_bottom' );