title: Codeigniter require_once() error when implementing reCaptcha
body: <p>I'm getting the following error when implementing recaptcha.  I'm not sure how to clear up the path error.</p>
  
  <p>Fatal error: require_once(): Failed opening required 'F:\xampp\htdocs\cyoa\application\controllers/recaptchalib.php' (include_path='.;\xampp\php\PEAR') in F:\xampp\htdocs\cyoa\application\controllers\cyoa.php on line 132</p>
  
  <p>controller:</p>
  
  <pre><code>public function register_insert()
  {
      require_once ('/recaptchalib.php');
      $privatekey = "xxx";
      $resp = recaptcha_check_answer ($privatekey,
                                      $_SERVER["REMOTE_ADDR"],
                                      $_POST["recaptcha_challenge_field"],
                                      $_POST["recaptcha_response_field"]);
  
      if (!$resp-&gt;is_valid) {
  </code></pre>
  
  <p>view:</p>
  
  <pre><code>&lt;?php
  require_once('recaptchalib.php');
  $publickey = "xxx";
  echo recaptcha_get_html($publickey);
  </code></pre>
  
  <p>?></p>