XML : Curl Php Returns NULL in browser on

I am trying to authenticate to third party ticketing system, connect and retrieve agent info. I then want to parse retrieved file so as to only show specific info such as 'id' and' 'active_since', but I get an NULL error in browser. Any help?

FILE RETURNED BY THIRDPARTY

  [agent] => Array          (              [active_since] => 2015-11-30T08:09:26-01:00              [available] => 1              [created_at] => 2015-05-14T19:15:18+00:00              [id] => XXXXX               [occasional] =>               [points] => 5520              [scoreboard_level_id] => 5000402007              [signature] =>               [signature_html] =>     

Below is the PHP CURL code.

   <?php      $username = "xxxxxxx";      $password = "xxxxxxx";      $url = 'http://support.xxxx.com/agents/xxx132067';        $cURL = curl_init();      curl_setopt($cURL, CURLOPT_SSL_VERIFYPEER, false);      curl_setopt($cURL, CURLOPT_URL, $url);      curl_setopt($cURL, CURLOPT_HTTPGET, true);      curl_setopt($cURL, CURLOPT_HTTPHEADER, array(          'Content-Type: application/json',          'Accept: application/json',          'header' => "Authorization: Basic " . base64_encode("$username:$password")              )      );        $result = file_get_contents($url);      // Will dump a beauty json :3      var_dump(json_decode($result, true));        $array["active_since"];        ?>