SERVER_ADDR undefined index

Question

I am getting an undefined index on my config page and it reads:

Notice: Undefined index: SERVER_ADDR in inc/config .inc.php on line 3

Any idea on how I can fix that? I know its warning, but would still like to get at it. I am using it to check for the address whether to use my local or remote config settings.

I am using it in this context:

if ($_SERVER['SERVER_ADDR'] == '127.0.0.1' || $_SERVER['SERVER_NAME'] == 'localhost') {        

}

Answer 1

The accepted answer is correct, but take note that on Windows IIS 7 (and above, to the best of my knowledge) you must use:

$_SERVER['LOCAL_ADDR']

instead of

$_SERVER['SERVER_ADDR']