/**
* builds the Authorization: header
*/
public function to_header($realm = null)
{
$first = true;
if ($realm) {
$out = 'Authorization: OAuth realm="' . OAuthUtil::urlencode_rfc3986($realm) . '"';
$first = false;
} else {
$out = 'Authorization: OAuth';
}
$total = array();
foreach ($this->parameters as $k => $v) {
if (substr($k, 0, 5) != "oauth") {
continue;
}
if (is_array($v)) {
throw new OAuthException('Arrays not supported in headers');
}
$out .= $first ? ' ' : ',';
$out .= OAuthUtil::urlencode_rfc3986($k) . '="' . OAuthUtil::urlencode_rfc3986($v) . '"';
$first = false;
}
return $out;
}
