Can't get response from MS CRM 2016 API on premise - php

Question

We are using dynamics crm 2016 in-premise using IFD. I am using below code to get a lead from CRM using API in php
//$url = $crm_url . "XRMServices/2011/OrganizationData.svc/LeadSet($lead)";
$url = $crm_url . "api/data/v8.1/leads($lead)";
$headers = array(
'Method: GET',
'OData-MaxVersion: 4.0',
'OData-Version: 4.0',
'Connection: keep-alive',
'User-Agent: PHP-SOAP-CURL',
'Content-Type: application/json; charset=utf-8',
'Accept: application/json',
'Host: ' . $host);
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_USERPWD, "$username:$password");
curl_setopt($ch, CURLOPT_HTTPHEADER, $headers);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_HTTP_VERSION, CURL_HTTP_VERSION_1_1);
curl_setopt($ch, CURLOPT_HTTPAUTH, CURLAUTH_NTLM);
//curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
$response = curl_exec($ch);
if( $response === false) { echo 'Curl error: ' . curl_error($ch);}
$status = curl_getinfo( $ch, CURLINFO_HTTP_CODE );echo "Status: $status ";
$response=json_decode($response, true);
foreach ($response as $id) {
$guid = $id['LeadId'];
echo 'GUID: ' . $guid. ' ';
}
echo "Lead id: "; var_dump($response['LeadId']);
echo "<pre>";
print_r($response);
echo "</pre>";
curl_close($ch);
I am getting this response:
Status: 401 GUID: T GUID: GUID: Lead id: NULL
Array
(
[Message] => There was an error processing the request.
[StackTrace] =>
[ExceptionType] =>
)
Can someone please help me how to get the correct response.
Alse please let me know if there is another method.
Many thanks..

Answer 1

Seems like the leadid is not filled in your request.
$url = $crm_url . "api/data/v8.1/leads($lead)";
Did you replace that variable by the guid?
exemple:
https://contoso.api.crm.dynamics.com/api/data/v8.1/accounts(1e3983e8-7894-e511-80db-3863bb2e3248)
Also, a good trick to test your queries is to paste them into your browser. I use Chrome. With IE you need to disable the RSS feed.
Sorry, i'm not familliar with php.