title: Getting all keys in a namespace with Zend Data Cache
body: <p>With the <a href="http://files.zend.com/help/Zend-Server-IBMi/zend_data_cache_-_php_api.htm" rel="nofollow">Zend Data Cache - PHP API</a>, is there a method for retrieving all keys in a namespace?</p>
  
  <p>Essentially, I need to replicate what you can do with <a href="http://php.net/manual/en/function.apc-cache-info.php" rel="nofollow">apc_cache_info</a>, such as</p>
  
  <pre><code>$info = apc_cache_info("user");
  $keys = array();
  
  foreach ($info["cache_list"] as $entry) {
      $keys[] = $entry["info"];
  }
  </code></pre>
  
  <p>It is not apparent from the documentation if this is possible.</p>
  
  <p>Thanks.</p>