<?php $widget=$this->beginWidget('path.to.WidgetClass'); ?>
...可能会由小物件获取的内容主体...
<?php $this->endWidget(); ?>

<?php $userId = 1; ?>
<?php $this->widget('WidgetName',array('userId'=>$userId)); ?>

<?php
class BannerMagic extends CWidget {
  public function run(){
  }
}

class MyWidget extends CWidget {
  public function init() {
    // 此方法会被 CController::beginWidget() 调用
  }
   public function run() {
    // 此方法会被 CController::endWidget() 调用
  }
}

<?php class BannerMagicWidget extends CWidget {
  public function run() {
   $random = rand(1,3);
   if ($random == 1) {
    $advert = "advert1.jpg";
   } else if ($random == 2) {
    $advert = "advert2.jpg";
   } else {
    $advert = "advert3.jpg";
   } 
   $this->render('bannermagic',array(
    "advert"=>$advert,
   ));
  }
}