这是一个非常好的问题——我的建议是使用瞬态。例如，在验证回调中：

 wpse51669_validation_cb($settings){
     //Perform validation checks

     if( $valid ){
        //If settings validate
        return $validate_settings;
     }

     //Otherwise add settings error
     add_settings_error(\'my-plug-in-settings\',\'error-with-xyz\', \'I fell over\',\'error\');

     //And add the failed settings to a transient
     set_transient( \'my-plug-in-settings-invalid\', $settings, 60);

     return false;
 }

    if( isset($_GET[\'settings-updated\']) && $_GET[\'settings-updated\'] && get_transient(\'my-plug-in-settings-invalid\') ){
        $options_to_display  = get_transient(\'my-plug-in-settings-invalid\');
        delete_transient(\'my-plug-in-settings-invalid\');    

    }else{
        $options_to_display = get_option(\'my-plug-in-settings\');
    }