Just looking over Goutte's code real quick shows that it does not support multiple requests.
However if you'd like, you can imitate Goutte by collecting the Guzzle requests and creating a new Symfony\Component\BrowserKit\Response object, which is what Goutte returns for the user to interact with.
Check out their createResponse() function (which is unfortunately protected) for more information.
<?php
// Guzzle returns an array of Responses.
$guzzleResponses = $client->send(array(
$client->get('http://www.example.com/foo'),
$client->get('http://www.example.com/baz'),
$client->get('http://www.example.com/bar')
));
// Iterate through all of the guzzle responses.
foreach($guzzleResponses as $guzzleResponse) {
$goutteObject = new Symfony\Component\BrowserKit\Response(
$guzzleResponse->getBody(true),
$guzzleResponse->getStatusCode(),
$guzzleResponse->getHeaders()
);
// Do things with $goutteObject as you normally would.
}
Note, when you wait for the responses to collect in $guzzleResponses, it will wait for all of the async to complete. If you want to do immediate responses, check out the Guzzle documentation for handling async requests.