Wsdl binding not found in ruby but run in php

Hi :

I turn off apache auth to make some test with soap.

When i call the server ( the server is a php soap server) from php it
return the spected value.

When i try to call the same server from ruby this is the error trow :

D:/ruby/lib/ruby/1.8/wsdl/port.rb:36:in find_binding': {}StockQuoteBinding not found (RuntimeError) from D:/ruby/lib/ruby/1.8/soap/wsdlDriver.rb:88:ininit_driver’
from D:/ruby/lib/ruby/1.8/soap/wsdlDriver.rb:39:in
`create_rpc_driver’
from D:/projetos-ruby/soap/soap_cliente1.rb:17

Code :
soap = SOAP::WSDLDriverFactory.new( wsdl_url );
driver = soap.create_rpc_driver; #==> This line gives the
error
driver.add_rpc_method( ‘getQuote’, ‘symbol’);
puts driver.test(10);

The wsdl file is attached to this topic.

I verfy the wsdl file with a validator and is ok, and is working calling
from php.

Have some ideas about what is happening?