Fo.addvariable with a php file and two variables?

Hi all,

I am trying to get this going

fo.addVariable("xmlPath", "searchPlace.php?place=paris&sort=business");

searchPlace.php just returns a .xml file. I know searchPlace.php works fine if I directlly access the file and searchPlace.php also works with just one variable

fo.addVariable("xmlPath", "searchPlace.php?place=paris");

But with two variable my flash doesn’t read/parse the xml file.

Anyone knows the solution??