PHP variables to Coldfusion variables

Hi there I am trying to figure out how I can pass variables from a PHP file to a CF file. I need to create the admin part of my project website in Coldfusion and the public part in PHP. I tried passing it through the url but then if someone were to guess that they'd just be able to directly input the variable and the value into the address bar. Do session variables cross over to CF from PHP or are they different? I'm not sure how to go about doing this so if anyone knows if it is possbile to do, then please let me know.

Thanks

re: PHP variables to Coldfusion variables

You could use a text file outside the web root or store the variables in a database.