方法一

在控制器中

public function actionShow(){
  $where['title']=Yii::$app->request->get('title');
  $where['content']=Yii::$app->request->get('content');
  $query=new Query();
  $query->from('votes');
  // votes 是表名
  if(!empty($where['title'])||!empty($where['content'])){
    $query->andFilterWhere(
      ['like','title',$where['title']]
    )->orFilterWhere(
      ['like','content',$where['content']]
    );
  }
  $users=$query->from('votes')->all();
  $pages = new Pagination(['totalCount' =>$query->count(),'pageSize'=>'2']);
  $users = $query->offset($pages->offset)->limit($pages->limit)->all();
  return $this->render('show',['data'=>$users,'where'=>$where,'pages'=>$pages]);
}

在v层

Url::toRoute(['show']),
  'method'=>'get',
]);
echo '姓名'," ",Html::input('text','title');
echo '简介'," ",Html::input('text','content');
echo Html::submitButton('提交');
ActiveForm::end();
echo "
";
echo "
";
?>

显示在v层的分页

$pages,
  'nextPageLabel'=>'下一页',
  'firstPageLabel'=>'首页'
])
?>

方法二（不带分页  是另外一种方法）

public function actionShow(){
  $titles=Yii::$app->request->post('title');
  $content=Yii::$app->request->post('content');
  $where=1;
  if($titles!=""){
    $where.=" and title like '%$titles%'";
  }
  if($content!=""){
    $where.=" and content like '%$content%'";
  }
  $sql="select * from votes where $where";
  $users=Yii::$app->db->createCommand($sql)->query();
  return $this->render('show',['data'=>$users]);
}