PHP+ODBC - Get return value from stored procedure

I need to use some old procedures, which return a status code. Rewriting procedures or rewriting PHP to use native driver is not possible 开发者_如何学JAVAfor now.

Is it possible to get the return value? If so, how ?

The underlying database is MS SQL 2008. I'm calling the stored procedure using this:

$res = odbc_execute( "EXEC procedure_name @param = 'value', ..." );

A very old question, but I have just had to solve it by trial and error. If the stored procedure is programmed to return a value, then it can be obtained via the usual odbc call:

$results = odbc_fetch_row ($res);

Then determine the structure of the returned array via:

var_dump ($results);