Yii框架小部件（Widgets）用法实例详解

<?php
use yii\jui\DatePicker;
?>
<?= DatePicker::widget(['name' => 'date']) ?>

<?php
use yii\jui\DatePicker;
?>
<?= DatePicker::widget([
  'model' => $model,
  'attribute' => 'from_date',
  'language' => 'ru',
  'dateFormat' => 'php:Y-m-d',
]) ?>

<?php
use yii\widgets\ActiveForm;
use yii\helpers\Html;
?>
 
<?php $form = ActiveForm::begin(['id' => 'login-form']); ?>
 
  <?= $form->field($model, 'username') ?>
 
  <?= $form->field($model, 'password')->passwordInput() ?>
 
  <div class="form-group">
    <?= Html::submitButton('Login') ?>
  </div>
 
<?php ActiveForm::end(); ?>

\Yii::$container->set('yii\widgets\LinkPager', ['maxButtonCount' => 5]);

namespace app\components;
 
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);
  }
}

<?php
use app\components\HelloWidget;
?>
<?= HelloWidget::widget(['message' => 'Good morning']) ?>

namespace app\components;
 
use yii\base\Widget;
use yii\helpers\Html;
 
class HelloWidget extends Widget
{
  public function init()
  {
    parent::init();
    ob_start();
  }
 
  public function run()
  {
    $content = ob_get_clean();
    return Html::encode($content);
  }
}

<?php
use app\components\HelloWidget;
?>
<?php HelloWidget::begin(); ?>
 
  content that may contain <tag>'s
 
<?php HelloWidget::end(); ?>

public function run()
{
  return $this->render('hello');
}