PHP to Java integration using : shell_exec function

Hi, Please advise if the following is possible and how can pass parameters from the PHP to the Java application. Thanks. Here's my script draft: <?PHP

      ...
      ....
      $XML_toEnc = urlencode ($XML);

                                                     // The XML_toEnc is a string and shall be urlencoded !
      $EncXML = shell_exec(""/usr/bin/java/java -jar MyApp.jar -XML <$XML_toEnc>); <<== ??? How can I pass parameters like a large string of let say XML?

echo $EncXML; // back to the MObile Client // Receiving client shall: // urldecode the string ?> Eli Orr