constructing 2D array

[Brian Warn]

Hi All,

Would someone please advise me regarding the best/easiest way to select two columns' 
worth of data and form a two-dimensional array?  I need to do so in order to be able 
to use some of the GD module's methods.  I haven't been able to find answers in 
documents/archives that I've checked that I thought would address this.

Thanks,
Brian