SOAP libraries for PHP [closed]

Question

Is there complete list of SOAP libraries for PHP? I am looking for complete list of available SOAP libraries to make comparison chart. So far I've found Zend_Soap, Nusoap, native PHP SOAP support (via module). Can you suggest more?

UPDATE: As harke suggested I am asking everybody to help keep fresh this list of PHP SOAP libraries in this topic. If you are contributor or user of any not listed library please add your answer below.

Answer 1

I know of these:

• Nusoap
• PHP SOAP Extension (based on libxml)
• WSO2 Web Services Framework for PHP
• Zend_Soap