return $this->last; can be understood that its a class variable that is returned but what exactly return $this->last->num_rows; mean?
If you can generalize explanation of A->B->C; that would be great.
return $this->last; can be understood that its a class variable that is returned but what exactly return $this->last->num_rows; mean?
If you can generalize explanation of A->B->C; that would be great.