ODBC (Oracle) and Bind Vars?!?

[wxdqz]

Please,

is there any way how to bind variables after calling stored procedure via odbc (Oracle) connection? (NT Server)

I've got a stored procedure with variables like

inparam IN NUMBER,
out_alfa OUT NUMBER,
out_beta OUT VARCHAR2

but i can not find any way how to use it in php after calling odbc_exec

begin
declare my_out_alfa NUMBER;
my_out_beta VARCHAR2(100);
begin
MYUSER.MyProcedure(123,my_out_alfa,my_out_beta);
end;
end;

-- so, is there any solution?

thank you,

robert