May i omit parameter name in URL in zend framework?

for example, may i use
http://127.0.0.1/user/delete/?23 or http://127.0.0.1/user/delete/23
instead of
http://127.0.0.1/user/delete/id/23 ?

Of course, in the case, there is noly one parameter for this action.
I would like to hide the parameter name in URL.

Is that possible? thanks.