Problem with Environment variables:

[Anon]

Okay. Here's a simple PHP code to display a variable:

<?php print "My ip is: $REMOTE_ADDR"; ?>

When I go to my browser and view this page, I get:

Notice: Undefined variable: REMOTE_ADDR in c:\inetpub\wwwroot\db\test2.php on line 7
My ip is:

Does anybody know why my environment variables aren't working. I checked my phpinfo() and it shows loaded.

Any ideas? This is creating some big problems.

Thanks!

[cheald]

Are you running this in a function? Environment variables are NOT global by default. You'll need to either use
global $REMOTE_ADDR; at the beginning of the line, or use $GLOBALS["REMOTE_ADDR"].

[jrichards]

when I changed it to

<?php
global $REMOTE_ADDR;
print "My ip is: $REMOTE_ADDR";

?>

I get this from my browser:

All I get is:

My ip is:

At least that got rid of the error! lol

I'm fairly new to PHP so all I'm trying to do is check my environment variables by print them on the screen. This is also for using in a Mail Form. I've noticed this problem before whenever I called an environment variable in a different page.

Any more thoughts?

[jrichards]

I found the problem. In another post it said you had to have register globals = on. I turned this on, and it started working immediately!

Thanks.

[Anon]

"REMOTE_ADDR" is the SERVER array, not in the ENV array:

for PHP >= 4.1.0:
echo $_SERVER['REMOTE_ADDR'];

for PHP < 4.1.0:
echo $HTTP_SERVER_VARS['REMOTE_ADDR'];

or just:
echo $REMOTE_ADDR;
if register_globals in ON

[jrichards]

Does turning globals on cause any security problems?

[Anon]

Quite possibly, read this:
http://www.php.net/manual/en/security.registerglobals.php

[jrichards]

Thanks for your help on this.

Jamie