session variables

fizzwizz

I would like to session register a global variable that can be updated.
From what I can see session_register("var") registers the variable $var globally, but can't be changed.

I register the variable $var like this.

$var="Hello World";
session_register("var");

however my script changes the variable $var to $var = "Goodbye World" it doesn't change globally.

is there another function that will allow me to globally register a variable so I don't have to post it between pages but will change everytime a script changes the variable?

Thanks again.

matto

this doesn't work like that:

session variables have to be "checked in" (session_register) in order to be updated. $var and $_SESSION['var'] are not the same variables (therefore the scope question doesn't apply). the session variable is stored on the server. in your script, you work with a copy.

you change it in your script; then, in order to update it in the session, re-session_register it. yes ... every time.

ajmoore

What version of php are you running and how is register_globals set in your php.ini file? If register_globals is set to off then you won't use session_register at all. To register a session variable you just need to use:

$_SESSION['varName'] = "value";

After calling session_start();

If you're using a recent version of php then register_globals is off by default...