MicroWSS is a lightweight web services server/toolkit written in Java. Its purpose it to allow for simple development and deployment of services that use SOAP 1.2 and WSDL. It handles everything relating to XML, so that you only need to deal with Java.
PHP2WSDL is a WSDL generator for PHP Web Service support, namely the built-in SOAP API. The definition (WSDL) are derived from the PHP object class, its method functions, the input arguments, output parameter, etc.