POST Request with PHP and with HTTP Authorization

function POSTReqeustWithHTTPRequest($message, $username, $password)

{

$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://example.com/update.xml', false, $context);
return $ret;

}