Once again, everything works, but each call to the above line returns that error.

As AnomalousMonk has already pointed out, this isn't an error - it's a warning. There is a singificant difference between the two which is important to understand.

The solution is to filter or modify your data such that you do not send uninitialized values into the subroutine.

🦛

In reply to Re^5: Is there a way to make a JSON out of multiple records from MySQL? by hippo
in thread Is there a way to make a JSON out of multiple records from MySQL? by bartender1382

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