SQL Stored procedures in PHP

Hi !

I never called stored procedures, located on a MSSQL server before. Now, i have problems, to get the return value from my stored procedure. I will show you the code i use:

$s = @mssql_connect($myServer, $myUser, $myPass) or
die("Couldn't connect to SQL Server on $myServer");

$d = @mssql_select_db($myDB, $s) or
die("Couldn't open database $myDB");

$puserId = 'test';
$pPassword = 'test';


$query = mssql_init("dbo.proc_login_registrar", $s);
mssql_bind($query, "@puserid", $puserId,
SQLVARCHAR ,false,false,15);

mssql_bind($query, "@ppassword", $pPassword,
SQLVARCHAR,false,false,20);

mssql_bind($query, "@pRetVal", $pRetVal, SQLINT2, true);

mssql_execute($query);

//--------------------------------------------------------------------------

My stored procedure returns the userid of the user. If no entry found, it returns a -1 value.

My problem is, that the variable for the return value is not "touched". That means, the return value is not given back.

What i'm doing wrong ???

Thanks,
bernd