Yii Framework: Flash message example.

Flash.php

<?php
class Flash extends CWidget
{
    public $keys = array(
        'success',
        'info',
        'warning',
        'error',
    );

    public $template = '<div class="flash-{key}">{message}</div>';
    
    /**
     * @see CWidget::run()
     */
    public function run()
    {
        if (is_string($this->keys)) {
            $this->keys = array($this->keys);
        }
            
        foreach ($this->keys as $key) {
            if (Yii::app()->getUser()->hasFlash($key)) {
                echo strtr($this->template, array(
                    '{key}' => $key,
                    '{message}' => Yii::app()->getUser()->getFlash($key),
                ));
            }
        }
    }
}

HogeController.php

<?php
class HogeController class extends Controller
{
    ...
    public function actionCreate()
    {
        $model = new Hoge();

        if (isset($_POST['Hoge'])) {
            $model->attributes = $_POST['Hoge'];

            if ($model->save()) {
                Yii::app()->user->setFlash('success', 'データを保存しました'); // フラッシュメッセージをセット
                $this->redirect(array('view', 'id' => $model->id));
            }
        }
        $this->render('_form', compact('model'));
    }
}

view.php

<?php if (Yii::app()->user->hasFlash('success')): ?>
<div class="flash-success">
    <?php echo CHtml::encode(Yii::app()->user->getFlash('success')); ?>
</div><!-- /.flash-success -->
<?php endif; ?>