PHP ActiveX Requires Chilkat v11.0.0+

Azure OAuth2 Client Credentials Grant Flow

See more OAuth2 Examples

Demonstrates how to get an OAuth2 access token for an Azure Registered App using the Client Credentials Grant Flow.

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

PHP ActiveX

<?php

$success = 0;

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

$http = new COM("Chilkat.Http");

$req = new COM("Chilkat.HttpRequest");
$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->HttpVerb = 'POST';
$req->ContentType = 'application/x-www-form-urlencoded';

$resp = new COM("Chilkat.HttpResponse");
$success = $http->HttpReq($url,$req,$resp);
if ($success == 0) {
    print $http->LastErrorText . "\n";
    exit;
}

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

$json = new COM("Chilkat.JsonObject");
$json->Load($resp->BodyStr);

$json->EmitCompact = 0;
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";
}


?>