PHP Webdav/ Exchange question

[doug]

I have been working on a php application interfacing with exchange, my
application works with PROPFIND but when I do a search I get an error
400, can anyone point out to me why, I do a METHOD SEARCH, my code
is below:

My query is well formed and works, so my header request may be
incorrect?

HTTP_REQUEST_ME THOD_SEARCH=SEA RCH

$req = &new HTTP_Request($u rl);

if (is_string($use rname)) {
$req->setBasicAuth($ username, @$password);
}
if ($method!=HTTP_ REQUEST_METHOD_ SEARCH)
{
$req->setMethod($met hod);
$req->addHeader("Dep th", "1");
$req->addHeader("Tra nslate", "f");
}
else
{
$req->setMethod($met hod);
// $req->addHeader("Dep th", "1");
// $req->addHeader("Tra nslate", "f");

}

$req->addHeader("Con tent-Type", "text/xml");
$req->addRawPostData ($query);

$req->sendRequest( );
if (PEAR::isError( $req->sendRequest()) ) {
echo "ERROR:".$r eq->getMessage() ;
}
$responsecode=$ req->getResponseCod e();