(PHP Extension) Twitter PIN-Based Authorization (Step 1)

Demonstrates the 1st step in Twitter PIN-based authorization using OAuth. The purpose of this step is to obtain a temporary request token that will be traded for an access token + secret in the final step. Once the access token + secret is obtained, the application can access the Twitter account in whatever ways it was authorized.

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

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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();

$http->put_OAuth1(true);
$http->put_OAuthConsumerKey('my-consumer-key');
$http->put_OAuthConsumerSecret('my-consumer-secret');

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

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

if ($resp->get_StatusCode() == 200) {

    $oauthToken = $resp->urlEncParamValue($resp->bodyStr(),'oauth_token');
    print 'OAuth temporary request token = ' . $oauthToken . "\n";

    $oauthTokenSecret = $resp->urlEncParamValue($resp->bodyStr(),'oauth_token_secret');
    print 'OAuth temporary token secret = ' . $oauthTokenSecret . "\n";

    $oauthCbConfirmed = $resp->urlEncParamValue($resp->bodyStr(),'oauth_callback_confirmed');
    print 'OAuth callback confirmed  = ' . $oauthCbConfirmed . "\n";

    // At this point, the end-user needs to browse to the following
    // Twitter URL to log in to his/her Twitter account and get a PIN.
    // 
    // https://api.twitter.com/oauth/authenticate?oauth_token=OAUTH_TOKEN
    // 
    // (where OAUTH_TOKEN is replaced with the contents
    // of the OAuth temporary request token.)

    // Your application may have an embedded browser such
    // that it automatically navigates to the above URL, or it may
    // be necessary for the user to browse to this URL independently.

    // Once the PIN is obtained, your application should provide a means
    // for the end-user to enter it (by typing it into an input text box, for example), 
    // and then Step 2 (the final step) can begin.

}
else {
    print $http->lastErrorText() . "\n";
}


?>