title: php apc_fetch all ids
body: <p>Is there a way to fetch and print, all the data stored in apc's storage?</p>
  
  <p>I need to do so for testing and debugging purposes.</p>
  
  <p>I know I can retrieve a specific data by doing <code>apc_fetch(id)</code>, but I don't know any way to retrieve all the data by passing (as an example) a <code>*</code></p>