Is passing secure info safe this way?

sorry about not providing enough info in the title…

when the user clicks a button, flash will send secure info to a php file, which will get data from mysql and send it back to flash in xml format, so that flash will directly parse it… now is doing this safe?


 xmlData.load("url_of_some_file?num=" + num,num,"POST");

would anyone trace the number variable as it is being passed to the php? will anyone be able to trace the data coming back to flash from php?
thanks in advance. :slight_smile: