PHPでtwitterのbotを作る

$url = "http://twitter.com/statuses/update.xml?";
$username = your username;
$password = your password;
$params = "status=". rawurlencode(message);

$result = file_get_contents($url.$params , false, stream_context_create(array(
"http" => array(
"method" => "POST",
"header" => "Authorization: Basic ". base64_encode($username. ":". $password)
)
)));