yii2.0实现创建简单widgets示例

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);}}

<?phpuse app/components/HelloWidget;?><?= HelloWidget::widget(['message' => 'Good morning']) ?>