Hiding HTML from source code [PHP]

Is there anyway that I can use PHP to hide HTML code from the source. See, I’m giving variables to flash(swf) through HTML ‘flash.swf?var=value&secondvar=secondvalue’ I don’t want my users to see the variables therefore I use PHP to put ‘?var=value&secondvar=secondvalue’ in for me. However, when the users view the source, they will see that and I don’t want them to.