I'm using Symfony2. I have an url defined as a parameter in parameters.yml. I want to create a service which is a SOAP client. The argument of the SOAP client is an url for a wsdl file. In my case, the url of the wsdl file is "%parameter_url%" + "?wsdl".
Is there a way to concatenate the "?wsdl" to a parameter already defined in YAML?