Fatal error when trying to clear APC cache using index.php
<p>i am facing this problem in magento site:</p>

<p><a href="https://stackoverflow.com/questions/26540187/magento-website-suddenly-has-no-data-received-error-code-err-empty-response">Magento website suddenly has &#39;No data received&#39; Error code: ERR_EMPTY_RESPONSE</a></p>

<p>so i tried solution provided by @Larzen in that link</p>

<p>but i am getting following error at the end of the frontend and backend :</p>

<pre><code>Fatal error: Call to undefined function apc_clear_cache() in /var/www/html/site/index.php on line 92
</code></pre>

<p>so is there any way to clear APC cache through index.php file or how we can do this from server side.</p>