WSDL 1.1 or 2.0, can Generate both with PHP

WSDL generation is supported with WSO2 Web Services Framework for PHP and is done using PHP reflection and an annotation parser. To generate a WSDL from a given PHP Web service, a ?wsdl request should be sent to the server. For example, if you want to generate the WSDL for the service echoService.php, a request should be sent as,

http://localhost/services/echoService.php?wsdl

This will generate a WSDL that adheres to 1.1 specification. You can also generate WSDL 2.0, you can use ?wsdl2 in place of ?wsdl.

For more details, you can refer tot he WSDL generation API documentation.