Consuming web services is nothing special nor exciting. In one of my current projects I just did this. Using the web service on my development-system and on the test-system works just fine.
However when deploying the module to the production-system and using it an exception is thrown containing the following error:
SOAP-ERROR: Parsing WSDL: Couldn't load from 'https://my-webservice-provider/service.wsdl' |
This exception was thrown during the initialization of my custom soap client (which derives from SoapClient). So what is the problem here? Two systems worked perfectly. One system is causing troubles. The issue is probably not caused by the code itself…
Conclusion
The error message given by the SoapClient is misleading and should be more precise! The openssl extension for PHP (php5-openssl) simply was not installed on the production system. Because the service is consumed via https openssl is a requirement.
I would asume an error message like: “Cannot load openssl extension” or something like that… But as TDD tells you: Don’t asume anything.