title: xhprof_enable is undefined, even after loading module in php.ini
body: <p>I've installed xhprof but Apache is not loading the extension.</p>
  
  <p>The extension is loaded in the php.ini, but I get the following error:</p>
  
  <pre><code>Fatal error: Call to undefined function xhprof_enable() in /home/bd/public_html/application/hooks/xhprof.php on line 15
  </code></pre>
  
  <p>Can someone help me?</p>