Passing multidimensional array as parameter Postgresql function

Passing multidimensional array as parameter Postgresql function

good evening fellows... I'm trying to maintain a Php application with a
Postgresql database. At one point, a stored procedure is called, lets say
function_x and inside function_x, function_y is called; function_y is
passed a variable named parameter_1, and the definition of parameter_1 is:
parameter_1 numeric[][3] := {};
I'm trying to do a select function_y directly on the command line (or
pgadmin) but I'm having problems passing an empty array into the function.
according to the docs you have to use variadic but so I tried:
select function_y(581, 'CPN-00000000001-0000', 'TPN-00000000001-0001',
100, 2013, variadic arr := array[]);
But I got this error:
ERROR: cannot determine type of empty array
I tried differents approachs but nothing works, so, how can I pass a
multidimensional array as a parameter at a query?
Thanks in advance