Use axis session from php client

[Nicola Salvo]

Hi,
I've developed a webservice using axis session. This is the code I used on the 
server:

Session session=MessageContext.getCurrentContext().getSession();
String id = in0;
client = (IClusterClient) session.get(id);

I need to use this service from PHP so I developed a client using PEAR:SOAP. How 
can I set setMaintainSession(true) on the client?

Thanks in advance

Nicola Salvo