how to consume external WSDL service in abap

hi ,

I have an external WSDL service which created on PHP platform .Now our requirement is to connect with the WSDL through abap .

So, we are creating consumer service in SE80 and when i give the WSDL url then it gives me an error

1).Proxy generation error occured

2).Exception in library handler

3).Incorrect value: Unknown namespace http://schemas.xmlsoap.org/soap/encoding/

please give some solution.