title: CURL gives 500 Internal server error
body: <p>I am unable to make the API call using CURL. Below is the code for making the API call using CURL</p>
  
  <pre><code>$ch=curl_init("http://sms.geekapplications.com/api/balance.php?authkey=2011AQTvWQjrcB56d9b03d&amp;type=4");
  
  curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
  curl_setopt($ch, CURLOPT_HTTPHEADER,
  array("Authorization: Bearer"));
  
  // execute the api call
  $result = curl_exec($ch);
  echo ($result);
  </code></pre>