how do i provide array parameters for my functions in php

i have just finished creating a function that has an array of integers as its
parameter. what i would like to know is how do i declare/execute my function
in php. i tried several syntax
e.g.
$arrvalue - an array of integers

$strquery = "select functionname($arrvalue)";
$strquery = "select functionname($arrvalue[])";

what is the right syntax
TIA
joseph