具体如下:
namespace yii\widgets;
use yii\base\Widget;
use yii\helpers\Html;
class HelloWidget extends Widget
{
public $message;
public function init()
{
parent::init();
if ($this->message === null) {
$this->message = 'Hello World';
}
}
public function run()
{
return Html::encode($this->message);
}
}调用方法
= HelloWidget::widget(['message' => 'Good morning']) ?>