title: php-apcu (CGI/FastCGI) apc_fetch always return false
body: <p>When using the php-apcu (<a href="https://github.com/krakjoe/apcu" rel="nofollow">https://github.com/krakjoe/apcu</a>) extension (not apc) in a php CGI environment the stored data from<code>apc_store</code> are empty.</p>
  
  <p>Anyone has experiences on how to solve this issue? </p>
  
  <p><strong>Example PHP File:</strong> test-apc.php</p>
  
  <pre><code>&lt;?php
  $k = 'test';
  if(isset($_GET['get'])) {
      $result = apc_fetch($k);
      echo "Read entry '$k': $result";
  } else if(isset($_GET['clear'])) {
      echo "Clear entry '$k'";
      apc_clear_cache('user');
  } else {
      apc_store($k, "HelloWord");
      echo "Write entry '$k' set";
  }
  print_r(apc_cache_info('user'));
  ?&gt;
  </code></pre>
  
  <p>Steps to reproduce:</p>
  
  <ol>
  <li>Open <code>http://server/test-apc.php</code> to call <code>apc_store</code></li>
  <li>Open <code>http://server/test-apc.php?get</code> to receive stored data using <code>apc_fetch</code></li>
  </ol>
  
  <p>BTW: <em>apc_cache_info('user') shows it properly with first request, second is empty</em></p>
  
  <p><strong>Relevant packages (OS: Debian 3.2.63):</strong></p>
  
  <ul>
  <li>Apache 2.2.22 (mpm-prefork, suexec-custom, wrapper) </li>
  <li>php5.5 as CGI</li>
  <li>php5-apcu 4.0.7</li>
  <li>(and dependencies)</li>
  </ul>