Description:
------------
I'm trying to get output from an mssql stored procedure.

I get "mssql_bind(): Unable to set parameter warning on line  6. 

I have "allow_call_time_pass_reference = On" in my php.ini.



Reproduce code:
---------------
1 $db = new clsDBsqlRags();
2 $db->connect();
3 $stmt=mssql_init("sp_NEXT_ACT_NUM ",$db->Link_ID); 
4 $act_base = 1;
5 mssql_bind($stmt,"@ACT_BASE", $act_base, SQLINT4);
6 mssql_bind($stmt, "RTNVAL", &$act_num, SQLINT4);
7
8 $result=mssql_execute($stmt, FALSE);

Stored procedure:



CREATE PROCEDURE sp_NEXT_ACT_NUM     
  @ACT_BASE int
AS

  DECLARE 
    @Act int                 --FETCHED CLIENT.ACCOUNT VALUE

  --GET SET OF ACCOUTS FROM CLIENT TABLE
  DECLARE Crsr_Act CURSOR
  FOR 
    SELECT C.ACCOUNT
    FROM CLIENT C
    WHERE C.ACCOUNT >= @ACT_BASE
    ORDER BY ACCOUNT

  OPEN Crsr_Act

  FETCH Crsr_Act INTO @Act

  --TRAVERSE Crsr_Act
  WHILE (@@FETCH_STATUS = 0)
  BEGIN

    IF @ACT_BASE < @Act 
      BREAK
    ELSE IF @ACT_BASE = @Act
      SELECT @ACT_BASE = @ACT_BASE + 1

    FETCH Crsr_Act INTO @Act

  END

  CLOSE Crsr_Act
  DEALLOCATE Crsr_Act

  RETURN @ACT_BASE


GO


Expected result:
----------------
expect $act_num to be set to the return value of the mssql stored procedure.

Actual result:
--------------
mssql_bind(): Unable to set parameter warning on line  6.