Question

I have this problem. I want to detect if there is not a session variable and create one, but if one already exists and is empty I want to leave it alone.

Say I have this to create my session variable if none is detected:

if (!$_SESSION['second_prefix']){$_SESSION['second_prefix'] = "";}

How should I change this to not perform any action is $_SESSION['second_prefix'] exists but is purposely blank?

Hudson

Answer 1

Try this:

if (!isset($_SESSION['second_prefix'])){
  $_SESSION['second_prefix'] = "";
}