At my boy’s only secondary school the slipper was a common ‘classroom’ punishment. The Headmaster occasionally caned for severe breaches of discipline. The Prefects (senior boys who dealt with most of the minor ‘out of class’ disciplinary matters via a weekly ‘court’) caned quite often, usually for repeat offenses. I was never caned.
Corporal punishment, including caning, became illegal in English state schools in 1986 and in English private schools in 1999, so it has been banned in all schools for nearly 15 years now. And my feelings about it? Well, I think that properly used corporal punishment in schools did quite a lot of good, and very little harm. I certainly think it was better than the modern alternatives which seem mainly to involve excluding children from school for periods ranging from days to indefinitely.