Yii之自定义组件

<?php
    class WidgetController extends Controller {
        public function actionIndex(){
            $this->render(‘index‘);    
        }
    }

$this->widget(‘application.widgets.UserWidget‘,array(
        ‘num‘=>3
    ));

class UserWidget extends CWidget {
        public $num;    //自定義屬性

        public function init(){
            //判断是否传入参数
            if(!$this->num){
                $this->num = 5;
            }
        }

        //自定义运行方法
        public function run(){
            $users = $this->getUsers();

            $this->render(‘users‘,array(
                ‘users‘=>$users
            ));
        }

        //方法执行体
        protected function getUsers(){
            $users = Yii::app()->db->createCommand()->select(‘id,name,create_time‘)->from("user")->order(‘create_time desc‘)->limit($this->num)->queryAll();

            return $users;
        }
    }

<h1>自定義挂件的使用</h1>
<?php if(!empty($users)) {?>
    <table border="0">
        <tr>
            <th>用户id</th>
            <th>用户名</th>
            <th>创建时间</th>
        </tr>
        <?php foreach($users as $v) {?>
            <tr>
                <td><?php echo $v[‘id‘]?></td>
                <td><?php echo $v[‘name‘]?></td>
                <td><?php echo date("Y-m-d H:i",$v[‘create_time‘]);?></td>
            </tr>
        <?php } ?>
    </table>
<?php } else {?>
    没有查询到用户
<?php } ?>