PHP Soap Client，soap Call（）方法节点属性，如何添加

I am having issue while crafting SOAP request using PHP's SOAP Client library.

So here is my code:

    $xmlr = new \SimpleXMLElement("<CustomerSearch></CustomerSearch>");
    $xmlr->addChild('AuthorID', 'aaa');
    $xmlr->addChild('UserID', 2)->addAttribute('type', 'lol');
    $xmlr->addChild('UserPassword', 'dffds');
    $xmlr->addChild('Email', 'fdfd');

    $this->soapClient->__soapCall("OTA_HotelResNotifRQ", [ 'type' => 'lol', new \SoapVar($xmlr->asXML(), \XSD_ANYXML)] );

This code produces XML that looks like this:

<SOAP-ENV:Body>
    <ns1:OTA_HotelResNotifRQ>
        <param0 xsi:type="xsd:string">lol</param0>
        <CustomerSearch>
            <AuthorID>aaa</AuthorID>
            <UserID type="lol">2</UserID>
            <UserPassword>dffds</UserPassword>
            <Email>fdfd</Email>
        </CustomerSearch>
    </ns1:OTA_HotelResNotifRQ>
</SOAP-ENV:Body>

This is not what I am trying to achieve. Using SimpleXMLElement I can achieve level of flexibility that I need. However, request method nodes are crafted using SoapClient itself. This is the part in which I have most problems, since I don't know how to customize it. Node would also need attributes, and I simply don't know how to add it. Final request should look like this:

<SOAP-ENV:Body>
    <ns1:OTA_HotelResNotifRQ type="lol">
        <CustomerSearch>
            <AuthorID>aaa</AuthorID>
            <UserID type="lol">2</UserID>
            <UserPassword>dffds</UserPassword>
            <Email>fdfd</Email>
        </CustomerSearch>
    </ns1:OTA_HotelResNotifRQ>
</SOAP-ENV:Body>

Does anyone knows how to do it correctly? Thanks