【dokuwiki】discussionプラグインでページ分けする方法

dokuwiki/lib/plugins/discussion/action.phpを「array_reverse」で検索し、その下の「foreach ($data['comments'] as $cid => $value) {」を以下に書き換え

            $COMMENT_PER_PAGE = 100;
            $current_page = 1;
            if( count($data['comments']) > $COMMENT_PER_PAGE ){
            	$page_url = (empty($_SERVER['HTTPS']) ? 'http://' : 'https://') . $_SERVER['HTTP_HOST'] . rtrim(parse_url($_SERVER['REQUEST_URI'], PHP_URL_PATH), '/');
            	$current_page = $_GET['commentpage'];
            	if( is_null($current_page) ){
            		$current_page = 1;
            	}
            	$output_urls = '<div class="comment-page-num-wrapper">';
            	for($i=1; $i<=(count($data['comments'])/$COMMENT_PER_PAGE)+1; $i++){
            		$page_query = "commentpage=" . $i;
            		if( strpos($page_query, $current_page) === false ){
            			$output_urls .= '<a class="comment-page-num" href="' . $page_url . '?' . $page_query . '#discussion__section">' . $i . '</a>';
            		}else{
            			$output_urls .= '<span class="comment-page-num-current">' . $i . '</span>';
            		}
            	}
              echo($output_urls);
            }
            
            foreach (array_slice($data['comments'], ($current_page-1)*$COMMENT_PER_PAGE, $COMMENT_PER_PAGE) as $cid => $value) {