CI3 num_rows on CI4

I believe you forgot the parenthesis on the getRow() statement.

From what I can understand the OP isn't complaining that it isn't working. He's complaining his Visual Code editor is highlighting it as an error, which is why I asked if he has the relevant extensions installed for CI4. I haven't checked though. to be honest.

I do not have dedicated extensions for CI4, for php I only have intelephense, I have to do some tests, but I think the problem lies in the order in which the code in the method is executed, in my specific case the code is more complex than the example I have posted, because I was trying to figure out which was the real replacement for the nums_rows function because in various other posts different things are listed and I had created a lot of confusion