Description:
------------
To the best of my knowledge, I should be able to pass a raw XML document (fragment) into the SOAP payload (i.e., XML Schema's anyXml). SoapVar -can- do this, however, the constant that activates this functionality (XSD_ANYXML) is not exported by the extension, nor is it documented in the help.

Reproduce code:
---------------
<?php
  $location = "http://www.example.org/example_service";
  $uri = "http://www.example.org/schemas/example_service";
  $my_xml = "<array><item/><item/><item/></array>";
  $client = new SoapClient(null, array('location' => $location, 'uri' => $uri);
  $var = new SoapVar($my_xml, XSD_ANYXML);
  $param = new SoapParam($var, "XMLData");
  $client->AnyFunction($param);
?>

Expected result:
----------------
The SOAP call should contain the non-escaped, literal text of $my_xml.

This behavior will occur if XSD_ANYXML is define()'d to 147. If you have netcat, you can set the $location value appropriately to point at a port (like http://localhost:1234) then set up netcat to listen on that port (nc -l -p 1234). This will show that the literal XML is, in fact, passed through as it should be.


Actual result:
--------------
The script will blow up with an warning about XSD_ANYXML being undefined, followed by an error stating that it's an invalid value for SoapVar.

The problem is easily solved by registering the XSD_ANYXML #define as a PHP constant in the ext/soap/soap.c file. Naturally, adding this constant to the help files would be nice, too :).