NuSOAP is a rewrite of SOAPx4, provided by NuSphere and Dietrich
Ayala. It is a set of PHP classes - no PHP extensions required - that
allow developers to create and consume web services based on SOAP 1.1,
WSDL 1.1 and HTTP 1.0/1.1.
Submitted by: Gea-Suan Lin <gslin at gslin.org>