IP logging with username upon login

[stalkandkill]

I found some code on the forums here to log IP addresses, which works fine, but I'd like to have the users' name logged beside the IP address as well. Can I add something to the code that will do this, or is there any other way to accomplish this?

Here's the code that logs someone's IP when they visit whatever page I add the code to:

$ip=$_SERVER['REMOTE_ADDR']; $log=("iplog.txt"); $logip=fopen($log,"a"); fputs($logip,date('m-d-y@H:i:sT')." - ".$ip."\n"); fclose($logip);

I actually did find a post here with a .txt file attachment that was supposed to provide this sort of functionality, but it said I didn't have permission to download the file, and now I can't even find the page again.