小部件自定义保存在小部件本身中。所以除了删除sidebars_widgets, 您还必须删除小部件中的自定义数据。

$sidebars_widgets = get_option(\'sidebars_widgets\');
foreach ($sidebars_widgets as $key => $value) {
    foreach ($value as $widget_id) {
        $pieces = explode(\'-\', $widget_id);
        $multi_number = array_pop($pieces);
        $id_base = implode(\'-\', $pieces);
        $widget = get_option(\'widget_\' . $id_base);

        //Here it deletes the widget customizations that are linked to an id
        unset($widget[$multi_number]);

        update_option(\'widget_\' . $id_base, $widget);
    }

    //Here it erases all the page\'s widget. Set ampty array.
    $sidebars_widgets[$key] = array();
}
update_option(\'sidebars_widgets\', $sidebars_widgets);