JoeDownham

Thanks for clarifying this — your example had made it clear where I went wrong. I hadn’t been explicitly setting the enclosure and escape arguments on fgetcsv(), and because the default settings had been working fine for all the other activity types, I hadn’t considered that they might not be suitab...

Thanks very much for clarifying — you're absolutely right regarding RFC 4180. I appreciate the correction, and I can see now that I was incorrect on that point. The CSV structure itself is compliant, and I agree that commas inside quoted fields are, in principle, not a problem for a compliant parser...