Example code for getting an OAuth 1.0a access_token from Twitter @anywhere users.

gistfile1.txt

<?php

// Download TwitterOAuth from http://github.com/abraham/twitteroauth.
require_once('twitteroauth/twitteroauth.php');

// Get consumer keys from http://dev.twitter.com/apps.
$consumer_key = '';
$consumer_secret = '';
$oauth_bridge_code = '';

// Build a TwitterOAuth object.
$connection = new TwitterOAuth(
  $consumer_key,
  $consumer_secret
);

// Request an access_token with an oauth_bridge_code.
$request = $connection->oAuthRequest('https://api.twitter.com/oauth/access_token', 'POST', array('oauth_bridge_code' => $oauth_bridge_code));

// If the access_token request succeeds...
if (200 === $connection->http_code){
  // Parse the access_token string.
  $token = OAuthUtil::parse_parameters($request);
  // Build new TwitterOAuth object with users access_token.
  $connection = new TwitterOAuth(
    $consumer_key,
    $consumer_secret,
    $token['oauth_token'],
    $token['oauth_token_secret']
  );
  // Call verify_credentials to make sure access_tokens are valid.
  $content = $connection->get('account/verify_credentials');
} else {
  $content = 'Oops.... something went wrong.';
}

print_r($content);