(PHP Extension) Azure OAuth2 Client Credentials Grant Flow

See more OAuth2 Examples

Note: Your Azure app must be registered as a single-tenant app to use client credentials.

Note: This example requires Chilkat v11.0.0 or greater.

For more information, see https://docs.microsoft.com/en-us/azure/active-directory/develop/v2-oauth2-client-creds-grant-flow

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<?php

include("chilkat.php");

$success = false;

// This example requires the Chilkat API to have been previously unlocked.
// See Global Unlock Sample for sample code.

$http = new CkHttp();

$req = new CkHttpRequest();
$req->AddParam('client_secret','CLIENT_SECRET');
$req->AddParam('client_id','CLIENT_ID');

// See Understanding Scopes in Azure OAuth2 Client Credentials Flow
$req->AddParam('scope','https://graph.microsoft.com/.default');

$req->AddParam('grant_type','client_credentials');

// Note: Your Azure app must be registered as a single-tenant app to use client credentials.
// Use your own tenant ID, for example 4d8fdd66-66d1-43b0-ae5c-e31b4b7de5cd
$url = 'https://login.microsoftonline.com/TENANT_ID/oauth2/v2.0/token';

$req->put_HttpVerb('POST');
$req->put_ContentType('application/x-www-form-urlencoded');

$resp = new CkHttpResponse();
$success = $http->HttpReq($url,$req,$resp);
if ($success == false) {
    print $http->lastErrorText() . "\n";
    exit;
}

$statusCode = $resp->get_StatusCode();
print 'Response status code = ' . $statusCode . "\n";

$json = new CkJsonObject();
$json->Load($resp->bodyStr());

$json->put_EmitCompact(false);
print $json->emit() . "\n";

// Sample successful output:

// {
//   "token_type": "Bearer",
//   "expires_in": 3599,
//   "ext_expires_in": 3599,
//   "access_token": "eyJ0eX...K0jOERg"
// }

if ($statusCode == 200) {
    $json->WriteFile('qa_data/tokens/azureClientCredentialsToken.json');
    print 'Success.' . "\n";
}
else {
    print 'Failed.' . "\n";
}


?>