My logbook shows 125 landings and 48.7 total time of flight until I got my PPL. 63 T&Gs until first solo.
Mind you, this was on an intensive course where I flew two-three times a day, every day. In mostly benign weather conditions. Also, I did not have any problems with nav (my 5th solo flight was my QXC), so I did spend a few more hours at the end of the course just doing T&Gs (both solo and dual) for the fun of it. (It helps that the US doesn't do landings fees.)
But I doubt whether you can do a full PPL with significantly less than 100 landings, or reach solo standard with significantly less than 50 landings. Especially not if you're doing a regular, one-lesson-a-week PPL, in typical NW-European weather conditions.