以下是我的函数，它不起作用：

function ts_dynamic_sidebar_params($params) {
    global $wp_registered_widgets;
    $settings_getter = $wp_registered_widgets[ $params[0][\'widget_id\'] ][\'callback\'][0];
    $settings = $settings_getter->get_settings();
    $settings = $settings[ $params[1][\'number\'] ];

    if ( isset($settings[\'title\']) ) {
        $params[0][\'before_widget\'] = \'<div class="widget">Widget Has Title\';
    }

    return $params;
}
add_filter(\'dynamic_sidebar_params\', \'ts_dynamic_sidebar_params\');