pp_cms/webApp/backend/views/category/create.php

<?php
/**
 * Author: lf
 * Blog: https://blog.feehi.com
 * Email: job@feehi.com
 * Created at: 2016-03-24 17:06
 */

use yii\helpers\Url;

/**
 * @var $categories []
 */

$this->params['breadcrumbs'] = [
    ['label' => Yii::t('app', 'Category'), 'url' => Url::to(['index'])],
    ['label' => Yii::t('app', 'Create') . Yii::t('app', 'Category')],
];
/**
 * @var $model common\models\Category
 */
?>
<?= $this->render('_form', [
    'model' => $model,
    'categories' => $categories,
]); ?>