*NOT* is not NOT - ok ?
Regarding my code and forms - db contains only id, url and was populated by myself ( spider ). It has no forms, no chances to "inject" something, blah blah ..
What I want to say is, it does what I said - instead of deleting rows, row count increases. Yes, if it would be an error, it would leave them as they are, but for some reason, it does something "impossible".
I've rewritten this script to a new file and still, row count increases.
Finally, I found that 1,2,3 .. rows are being added again at the end of my table .. basically, first row goes to the end, second row goes to the end, etc. - how it's possible and how to stop this crap ?