title: Warning: strpos(): Empty needle in ......wordpress Plugin
body: <p>I get this error :</p>
  
  <blockquote>
    <p>Warning: strpos(): Empty needle in ......popularity-contest.php on
    line 2574</p>
  </blockquote>
  
  <pre><code>function akpc_is_searcher() {
          global $akpc;
          $referrer = parse_url($_SERVER['HTTP_REFERER']);
          $searchers = explode(' ', preg_replace("\n|\r|\r\n|\n\r", ' ', $akpc-&gt;searcher_names));
          foreach ($searchers as $searcher) {
                  if (strpos($referrer['host'], $searcher) !== false) {
                          return true;
                  }
          }
          return false;
  }
  </code></pre>
  
  <p>Can someone please help me to fix this problem?</p>