(PHP Extension) Twitter - Application Only Authentication

Demonstrates how to get a Twitter OAuth2 token for application-only authentication.

This example is deprecated and no longer valid.

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

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<?php

include("chilkat.php");

$success = false;

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

// Note: Define your Twitter apps at https://apps.twitter.com/

// We're going to send an HTTPS POST that looks like this:

// POST /oauth2/token HTTP/1.1
// Host: api.twitter.com
// User-Agent: My Twitter App v1.0.23
// Authorization: Basic eHZ6MWV2RlM0d0VFUFRHRUZQSEJvZzpMOHFxOVBaeVJn
//                      NmllS0dFS2hab2xHQzB2SldMdzhpRUo4OERSZHlPZw==
// Content-Type: application/x-www-form-urlencoded;charset=UTF-8
// Content-Length: 29
// Accept-Encoding: gzip
// 
// grant_type=client_credentials

// Update these values with your consumer key and secret (also known as API key and API secret).
$consumerKey = 'TWITTER_CONSUMER_KEY';
$consumerSecret = 'TWITTER_CONSUMER_SECRET';

$http = new CkHttp();

$http->put_BasicAuth(true);
$http->put_Login($consumerKey);
$http->put_Password($consumerSecret);

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

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

$resp = new CkHttpResponse();
$success = $http->HttpReq('https://api.twitter.com/oauth2/token',$req,$resp);
if ($success == false) {
    print $http->lastErrorText() . "\n";
    exit;
}

print 'Response Status Code: ' . $resp->get_StatusCode() . "\n";

if ($resp->get_StatusCode() != 200) {
    print 'Expected a 200 response status code for success.' . "\n";
    print $resp->bodyStr() . "\n";
    exit;
}

// We should get a JSON response like this:

// {
//     "token_type":"bearer",
//     "access_token":"..."
// }

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

print 'Access token = ' . $json->stringOf('access_token') . "\n";

?>