Calling a plpgsql function with an array of results?

Trying to call my function like so:

select myschema.myfunction(select myid from mytable);

myfunction has the signature: myfunction(integer[])

myid is an integer; I am trying to select them as an array to pass to the
function.

Where am I going wrong? Thanks!

--
Wells Oliver
wellsoliver(at)gmail(dot)com