clutch problems.

Hi I'm new to this forum. Basically I drove my clio this morning as nice as you'd like but I pulled in at a shop and as I drove it afterwards i put it into 3rd gear exiting an island and as i pushed the throttle pedal it just revved so I tried 4th and did exactly the same and was the same in all gears after that. I had about 30mm on the throttle pedal where I could make the car go but anything after that it just revved as if I wasn't in gear. I managed to drive it about 6 miles back to my local garage. Any help would be appreciated. Thanks