Oracle 9.2.0 stored procedure & PHP 4.3.2

Hi, I have deveolped a stored procedure within oracle 9.2.0. This procedure has an output parameter that is a defined as a REF CURSOR and I would to know if it is posible, using ORA functions in PHP, to run this procedure and retrieve the data contained by this REF CURSOR. I would be very grateful if you could enclose a simple example explaining the solution in a few lines of code. I think that this should clarify very much my doubts. Thanks