$http_user_agent

[Bizzle]

I was doing a pretty basic tutorial to gather the users web browser, browser version, and OS. I did most of this through predefined variable $HTTP_USER_AGENT but when I go to run the script it says "Notice: Undefined variable: HTTP_USER_AGENT "

Why is this not working? do I have to set up the variable in php.ini? The tut I followed said nothing about it but I don't get why this isn't working.

[drew010]

try using $_SERVER['HTTP_USER_AGENT']

if the tutorial is old, it probably doesnt address register globals being off.

for details on register globals, see http://php.net/manual/en/configuration.directives.php#ini.register-globals

see also http://php.net/manual/en/reserved.variables.php for a list of the reserved variables.

[Bizzle]

Thanks, that did it.