quick question

Just a quick question -- I'm temporarily unsubbed so if anyone could CC me directly that would be great. I'm trying to write my code in accordance with the PHP 4.1.0 security advisory -- that is, I want to use the $_GET and $_POST arrays when grabbing variables passed with GET and POST forms. But how should I construct the variables for a "switch" statement? I'm left confused, since these aren't written with the "$" prefix as most variables are... Should it be: case "_POST['insert']" or should it be: case "$_POST['select']" ? Thanks very much! Erik PS: I can't test it myself b/c my php.ini file is "register_globals=on" so I won't know the difference, but I'm curious for all future code I write to be compatible.