$context = stream_context_create(array( 'http' => array( 'method' => 'POST', 'header' => sprintf("Authorization: Basic %s\r\n", base64_encode($username.':'.$password)). "Content-type: application/x-www-form-urlencoded\r\n", 'content' => http_build_query(array('status' => $message)), 'timeout' => 5, ), )); $ret = file_get_contents('http://twitter.com/statuses/update.xml', false, $context);