mixed
$query_data = NULL
])(Re)set the querystring. See http\Client\Request::addQuery() and http\Message::setRequestUrl().
<?php
$q = new http\QueryString("foo=bar&bar=foo");
$r = new http\Client\Request;
$r->setQuery($q);
var_dump($r->getRequestUrl());
?>
Yields:
string(33) "http://localhost/?foo=bar&bar=foo"