I am trying to import data using wpallimport,
but how can I prevent the data containing “null” or “None” from being transferred to SQL?
Because when you write them to SQL like this, my website perceives it as data.
Could you please suggest a function for this, thank you.

Question 2:

Transport near Istanbul

When adding city data, if it says “null” or “None”, I want to get the word “Istanbul” in the keyword, or if the category section of the data I want to import is empty,
I want to get the word “Transport”, that is, before near or after near.

If you know a special function to achieve this, I would be very grateful if you could write it.

I tried Wpallimport ready codes but I couldn’t do it.