With phals you don't take a cutting, you keiki the plant, if you google
KEIKI, you will come up with a number of methods, the more simple one
is to remove the bract on the 2nd or 3rd node of the spike and apply
rooting compound wrap in moist paper towel or moss, wrap that in saran
wrap, and see if it will produce another plant

this site has instructions and picture of how to do it

http://www.easyorchids.co.uk/site/content/view/30/71/

Jack