PHP how to check if a MySQLi query needs to be closed?

I think that if there are no rows left in the result set, it should be closed automatically. So, if you iterate through the whole result set, there's no need to call mysqli_result . However, you should close it if you fetch, let's say, only the first row from a result set containing about 100 rows.

You could set it to null after you close it, and check for null in the destructor before closing it there.

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