How to fix mysqli bug when debugging with xdebug?

Question

PHP

Hello dear, I set a breakpoint and I want to debug the interaction from beginning to end, at the end of the work I get Property access not alowed warnings, as well as Cannot fetch myqli. The warning is thrown on $this->connection->close(); //connection = mysqli.
The line unset($this->connection); after the closure does not save, the warnings are still not reaching up to this point