It means the same.
In the combined ideal gas law; PV/T = constant
This means; P1 x V1 /T1 = P2 x V2 /T2
As the volume is the same; you can eliminate the V (V1 = V2 = V)
This makes Charles' law...
P/T = Constant (P1/T1 = P2/T2)
Hope this helps! Message me if you need me to explain this a bit more :)