Send parameters from PHP to JSP via POST

Hi every:
I have a big dilema here and does not know how to solve it. I have a page call from now for sample page1.php in which I generate two values: $value1 and $value2. This values are Total Ammount for a buy and Order ID so they are very important. I need to send this values to a JSP page to proccess them but GET is not an option also SESSIONS and either COOKIES because all of them are unsecure. Any other help? I was thinking in cURL but two problems come to my mind: how I redirect to the JSP after I send the values via cURL? my hosting has cURL disabled for security how I can enable from within PHP or via php.ini?

Cheers and thanks in advance