API V2 CURL PHP - INVALID_REQUEST

API V2 CURL PHP - INVALID_REQUEST

Hi all,

I have a problem to test Zoho API.
Message INVALID_REQUEST appears when I call a simple url like : " https://www.zohoapis.com/crm/v2/settings/modules"
Can you help me ?
Thanks a lot.
Pierrot.

My code :
  1. $key = 'a50c863d3d9d436d7ed1d1e894942a9e';
  2. $url = 'https://www.zohoapis.com/crm/v2/settings/modules';
  3. $header = array("Authorization: ".$key);

  4. $curl = curl_init();
  5. curl_setopt($curl, CURLOPT_URL, $url);
  6. curl_setopt($curl, CURLOPT_HTTPHEADER, $header);
  7. curl_setopt($curl, CURLOPT_POST, false);
  8. curl_setopt($curl, CURLOPT_RETURNTRANSFER, true);
  9. curl_setopt($curl, CURLOPT_TIMEOUT, 30);
  10. curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, false);
  11. curl_setopt($curl, CURLOPT_SSL_VERIFYHOST, false); 
  12. $result = curl_exec($curl);

  13. echo 'Error : ' . curl_error($curl).'<br>';
  14. echo 'Result : '.$result.'<br>';

  15. curl_close($curl);