Description:
------------
Dear Devs,

currently we can map SOAP requests and responses to userland classes, using the classmap entry from SoapClient::__construct()'s options argument.

Sometimes those userland classes will have dependencies to be injected, before the SoapClient can fill them with their payload. Since SoapClient only accepts class names and not objects to be cloned or at least callbacks to act as a factory, bootstrapping these data objects is impossible.

Could you please change the current behavior in that regard?

In the interest of backwards compatibility, I suggest simply following the callback approach. If a callback is used, instead of a classname, PHP should use that callback as a factory for new classes. 

Test script:
---------------
Example to explain the idea:
<?php


class MySoapClient extends SoapClient
{

  public function __construct($wsdl,$dbAdapter)
  {

    $options = array();
    // hard coded class name
    $options['classmap']['RequestType']  = 'RequestType';

    // anonymous function as factory
    $options['classmap']['ResponseType1'] = function() use($dbAdapter){
                                              $object=new MyResponseMapping();
                                              $object->injectDBAdapter($dbAdapter);
                                              return $object;
                                            };
    // factory method of a given class
    $options['classmap']['ResponseType2'] = array($this,'factoryMethod');

    parent::__construct($wsdl,$options);
  }

  /** a factory method for a certain kind of data access objects 
   *  @param void
   *  @return Object
   */
  public function factoryMethod()
  { 
    $object=new MyResponseMapping();
    $object->injectSourceObject($this);
    return $object;
  }
}

$wsdl         = 'URL 2 a WDSL';

class RequestType

{

    public $payload; 

}


$request         = new RequestType;

$request->payload    = 'payload';



$soapclient = new MySoapClient($wsdl,$dbAdapter);

$result     = $soapclient->doSomething($request);




var_dump($result);


Expected result:
----------------
The var_dump() should reflect that objects of the MyResponseMapping types were used and their dependencies should have been fulfilled using the factories from my example. 

Actual result:
--------------
PHP silently (why?) ignores my mappings and uses stdClass objects instead.