Schema "anyType" in WSF/PHP

Have you seen any schema that contain elements in 'anyType' like this,

       <xsd:schema elementFormDefault="qualified" targetNamespace="http://www.wso2.org/php">
          <xsd:element name="echoString">

              <xsd:complexType>
                  <xsd:sequence>
                      <xsd:element name="inMessage" type="xsd:anyType"/>

                  </xsd:sequence>
              </xsd:complexType>
          </xsd:element>
          <xsd:element name="echoStringResponse">
              <xsd:complexType>

                  <xsd:sequence>
                      <xsd:element name="returnVal" type="xsd:anyType"/>
                  </xsd:sequence>

              </xsd:complexType>
          </xsd:element>
      </xsd:schema>

This type of schemas allow users to set any types at run-time. Now WSF/PHP allows users to use this facility in PHP. For an example,
So if any one want to build the following payload,

<echostring xmlns="http://www.wso2.org/php">
  <inmessage>
      code and string
  </inmessage>
</echostring>

 

You can just use following array to generate this,

$res = $proxy->echoString(array("inMessage" => "code and string"));

or using the classmap,

class echoString
{
  public $inMessage;
}

$echostr = new echoString();

$echostr->inMessage = "test1";

$proxy->echoString($echostr);
 

Similarly you will be able handle the response..