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.




<?php

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

 ?>

<div class="box">

    .......

.... html

</div>

<?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?