how do i provide array parameters for my functions in php - Mailing list pgsql-sql

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