autenticação da api do Twitter

Segue o link funciona perfeitamente

http://www.9lessons.info/2011/02/login-with-facebook-and-twitter.html

link de download

http://demos.9lessons.info/subscribe/index_twitbook.php

Cadastre seu email e logo eles liberam o download, algo em torno de 18 a 24 horas

mas se não quiser esperar acesse por este link https://app.box.com/s/tqtrdcsyhlu87k76owjg é o mesmo pois tenho cadastro lá!

Este login é via curl

só um exemplo

twitteroauth.php

<?php

/*
* Abraham Williams (abraham@abrah.am) http://abrah.am
*
* The first PHP Library to support OAuth for Twitter's REST API.
*/

/ Load OAuth lib. You can find it at http://oauth.net /
require_once('OAuth.php');

/**
* Twitter OAuth class
*/
class TwitterOAuth {
/ Contains the last HTTP status code returned. /

 public $http_code;
 /* Contains the last API call. */
 public $url;
 /* Set up the API root URL. */
 public $host = "https://api.twitter.com/1.1/";
 /* Set timeout default. */
 public $timeout = 30;
 /* Set connect timeout. */
 public $connecttimeout = 30;
 /* Verify SSL Cert. */
 public $ssl_verifypeer = FALSE;
 /* Respons format. */
 public $format = 'json';
 /* Decode returned json data. */
 public $decode_json = TRUE;
 /* Contains the last HTTP headers returned. */
 public $http_info;
 /* Set the useragnet. */
 public $useragent = 'TwitterOAuth v0.2.0-beta2';
 /* Immediately retry the API call if the response was not successful. */
 //public $retry = TRUE;

 /**
 * Set API URLS
 */
 function accessTokenURL() { return 'https://api.twitter.com/oauth/access_token'; }
 function authenticateURL() { return 'https://twitter.com/oauth/authenticate'; }
 function authorizeURL() { return 'https://twitter.com/oauth/authorize'; }
 function requestTokenURL() { return 'https://api.twitter.com/oauth/request_token'; }

 /**
 * Debug helpers
 */
 function lastStatusCode() { return $this->http_status; }
 function lastAPICall() { return $this->last_api_call; }

 /**
 * construct TwitterOAuth object
 */
 function __construct($consumer_key, $consumer_secret, $oauth_token = NULL, $oauth_token_secret = NULL) {
 $this->sha1_method = new OAuthSignatureMethod_HMAC_SHA1();
 $this->consumer = new OAuthConsumer($consumer_key, $consumer_secret);
 if (!empty($oauth_token) && !empty($oauth_token_secret)) {
 $this->token = new OAuthConsumer($oauth_token, $oauth_token_secret);
 } else {
 $this->token = NULL;
 }
 }

 /**
 * Get a request_token from Twitter
 *
 * @returns a key/value array containing oauth_token and oauth_token_secret
 */
 function getRequestToken($oauth_callback = NULL) {
 $parameters = array();
 if (!empty($oauth_callback)) {
 $parameters['oauth_callback'] = $oauth_callback;
 }
 $request = $this->oAuthRequest($this->requestTokenURL(), 'GET', $parameters);
 $token = OAuthUtil::parse_parameters($request);
 $this->token = new OAuthConsumer($token['oauth_token'], $token['oauth_token_secret']);
 return $token;
 }

 /**
 * Get the authorize URL
 *
 * @returns a string
 */
 function getAuthorizeURL($token, $sign_in_with_twitter = TRUE) {
 if (is_array($token)) {
 $token = $token['oauth_token'];
 }
 if (empty($sign_in_with_twitter)) {
 return $this->authorizeURL() . "?oauth_token={$token}";
 } else {
 return $this->authenticateURL() . "?oauth_token={$token}";
 }
 }

 /**
 * Exchange request token and secret for an access token and
 * secret, to sign API calls.
 *
 * @returns array("oauth_token" => "the-access-token",
 * "oauth_token_secret" => "the-access-secret",
 * "user_id" => "9436992",
 * "screen_name" => "abraham")
 */
 function getAccessToken($oauth_verifier = FALSE) {
 $parameters = array();
 if (!empty($oauth_verifier)) {
 $parameters['oauth_verifier'] = $oauth_verifier;
 }
 $request = $this->oAuthRequest($this->accessTokenURL(), 'GET', $parameters);
 $token = OAuthUtil::parse_parameters($request);
 $this->token = new OAuthConsumer($token['oauth_token'], $token['oauth_token_secret']);
 return $token;
 }

 /**
 * One time exchange of username and password for access token and secret.
 *
 * @returns array("oauth_token" => "the-access-token",
 * "oauth_token_secret" => "the-access-secret",
 * "user_id" => "9436992",
 * "screen_name" => "abraham",
 * "x_auth_expires" => "0")
 */
 function getXAuthToken($username, $password) {
 $parameters = array();
 $parameters['x_auth_username'] = $username;
 $parameters['x_auth_password'] = $password;
 $parameters['x_auth_mode'] = 'client_auth';
 $request = $this->oAuthRequest($this->accessTokenURL(), 'POST', $parameters);
 $token = OAuthUtil::parse_parameters($request);
 $this->token = new OAuthConsumer($token['oauth_token'], $token['oauth_token_secret']);
 return $token;
 }

 /**
 * GET wrapper for oAuthRequest.
 */
 function get($url, $parameters = array()) {
 $response = $this->oAuthRequest($url, 'GET', $parameters);
 if ($this->format === 'json' && $this->decode_json) {
 return json_decode($response);
 }
 return $response;
 }

 /**
 * POST wrapper for oAuthRequest.
 */
 function post($url, $parameters = array()) {
 $response = $this->oAuthRequest($url, 'POST', $parameters);
 if ($this->format === 'json' && $this->decode_json) {
 return json_decode($response);
 }
 return $response;
 }

 /**
 * DELETE wrapper for oAuthReqeust.
 */
 function delete($url, $parameters = array()) {
 $response = $this->oAuthRequest($url, 'DELETE', $parameters);
 if ($this->format === 'json' && $this->decode_json) {
 return json_decode($response);
 }
 return $response;
 }

 /**
 * Format and sign an OAuth / API request
 */
 function oAuthRequest($url, $method, $parameters) {
 if (strrpos($url, 'https://') !== 0 && strrpos($url, 'http://') !== 0) {
 $url = "{$this->host}{$url}.{$this->format}";
 }
 $request = OAuthRequest::from_consumer_and_token($this->consumer, $this->token, $method, $url, $parameters);
 $request->sign_request($this->sha1_method, $this->consumer, $this->token);
 switch ($method) {
 case 'GET':
 return $this->http($request->to_url(), 'GET');
 default:
 return $this->http($request->get_normalized_http_url(), $method, $request->to_postdata());
 }
 }

 /**
 * Make an HTTP request
 *
 * @return API results
 */
 function http($url, $method, $postfields = NULL) {
 $this->http_info = array();
 $ci = curl_init();
 /* Curl settings */
 curl_setopt($ci, CURLOPT_USERAGENT, $this->useragent);
 curl_setopt($ci, CURLOPT_CONNECTTIMEOUT, $this->connecttimeout);
 curl_setopt($ci, CURLOPT_TIMEOUT, $this->timeout);
 curl_setopt($ci, CURLOPT_RETURNTRANSFER, TRUE);
 curl_setopt($ci, CURLOPT_HTTPHEADER, array('Expect:'));
 curl_setopt($ci, CURLOPT_SSL_VERIFYPEER, $this->ssl_verifypeer);
 curl_setopt($ci, CURLOPT_HEADERFUNCTION, array($this, 'getHeader'));
 curl_setopt($ci, CURLOPT_HEADER, FALSE);

 switch ($method) {
 case 'POST':
 curl_setopt($ci, CURLOPT_POST, TRUE);
 if (!empty($postfields)) {
 curl_setopt($ci, CURLOPT_POSTFIELDS, $postfields);
 }
 break;
 case 'DELETE':
 curl_setopt($ci, CURLOPT_CUSTOMREQUEST, 'DELETE');
 if (!empty($postfields)) {
 $url = "{$url}?{$postfields}";
 }
 }

 curl_setopt($ci, CURLOPT_URL, $url);
 $response = curl_exec($ci);
 $this->http_code = curl_getinfo($ci, CURLINFO_HTTP_CODE);
 $this->http_info = array_merge($this->http_info, curl_getinfo($ci));
 $this->url = $url;
 curl_close ($ci);
 return $response;
 }

 /**
 * Get the header info to store.
 */
 function getHeader($ch, $header) {
 $i = strpos($header, ':');
 if (!empty($i)) {
 $key = str_replace('-', '_', strtolower(substr($header, 0, $i)));
 $value = trim(substr($header, $i + 2));
 $this->http_header[$key] = $value;
 }
 return strlen($header);
 }
}