Problem With Get Cache(Fragmentcache)

Hi guys, sorry for this question. I have a following problem: I have a view in the following code in which I use cache.


if ($this->beginCache('1')) {


<div class="box">


.... html


<?php $this->endCache(); } ?>

I want this cache I can delete it, but to delete it I must be able get cache.

 var_dump(\Yii::$app->cache->get('1')); exit;

A cache is at file system released, but I can not access?