!isset ??

Hm. I hope I'm not opening an old wound: Curious about the proper way to test for the existence of a variable, I decided to read up on isset() at php.net's function manual pages. It seems at first to be a way to test whether or not a variable has been set. But reading the annotations below the documentation is mind boggling. Back and forth, it seems to go -- and then to find out that one method is to be used to test for POSTed variables, and another to be used for GETted variables (for $_POST, use "$_POST['var'] !='' ", and for $_GET, use "!isset($_GET['var'])"). Pretty confusing. Can anyone shed some light on whether or not there is a final definite way to do this? I've used (!($_POST['var'])) with no problems in the past, but does good coding style suggest that I use (!isset($_POST['var'])) now? Erik ---- Erik Price Web Developer Temp Media Lab, H.H. Brown pricee@hhbrown.com