Adding zeros in each dimension of an array

For a data frame, we can add an additional row or column easily. For
example, we can add an additional row of zero and an additional row of
column as follows.

Is there an easy and similar way to add zeros in each dimension? For
example, for
array(1:12, dim=c(2,2,3))?

Thanks for your help!!
   Hanna

x <- as.data.frame(matrix(1:20,4,5))> x[5,] <- 0> x[,6] <- 0> x  V1 V2 V3 V4 V5 V6

1  1  5  9 13 17  0
2  2  6 10 14 18  0
3  3  7 11 15 19  0
4  4  8 12 16 20  0
5  0  0  0  0  0  0