SimpleXML object (1 item)
[0] // <soap:Envelope>
	->children('http://schemas.xmlsoap.org/soap/envelope/')
		->Header[0]
			->children('http://example.org/security')
				->credentials[0]
					->children(null)
						->username[0]
						->password[0]
		->Body[0]
			->children('http://example.org/some-soap-service')
				->DoSomething[0]
					->children(null)
						->from[0]
						->to[0]