我倾向于寻找简单的解决方案，所以我的建议是查询页面，按修改日期排序，并显示在仪表板小部件中。

add_action( \'wp_dashboard_setup\', \'add_old_pages_widget\' );

function add_old_pages_widget() {

    wp_add_dashboard_widget( \'oldpages\', \'Oldest Pages\', \'old_pages\' );
}

function old_pages() {

    $pages = get_pages( array(
    \'sort_column\' => \'post_modified\'
    ) );

    echo \'<ul>\';

    foreach ( $pages  as $page) {

    $edited = human_time_diff( strtotime($page->post_modified) );
    $link = get_edit_post_link( $page->ID );
    echo "<li><a href=\'{$link}\'>{$page->post_title}</a> ( edited {$edited} ago )</li>";
    }

    echo \'</ul>\';
}