get global, visitor info

[vent]

I want get as much info from a visiter to my site as possible.

<?
print_r($GLOBALS);
?>
http://www.dec0de.net/timeline/php/test.php

ok. so i get a load of info, some of what i want isn't there. though. selected lang/o.system... how can i ask for sprecific things like;
country,
what kind of computer,
screen resolution.
colour depth,
visiter IP address,
operating system,..computername?!?...

and then put it into a database if they haven't been before or up thier visits figure by +1 if they have. this bit i can do. its just getting the information and splitting it up into variables...

any help would be great.

dan.

[thoand]

You can find some in the predefined variable:

$_SERVER[]

More info here:
http://www.php.net/manual/en/reserved.variables.php#reserved.variables.server

play around width it
eg.
<?echo $_SERVER['HTTP_USER_AGENT'];?>
will print the UserAgent(browser) and OS.

For getting screen resolution and color depth, you have to go client side, and JavaScript is most popular:

<script>
//This will give you your screen width.
alert(screen.colorDepth);

//This will give you your screen width.
alert(screen.width);

//This will give you your screen width.
alert(screen.height);

</script>

You will need to get the javascript values to PHP so you can further store it to your database

you can do something like this:

<?
$colorDepth = "<script>document.write(screen.colorDepth);</script>";
?>

Now $colorDepth is holding your systems color depth.

NB. JavaScript can somtimes be turned off by the user, so don't rely 100%, onehundred percent on it.

Neither what useragent that the user is using, as far as I know the Mozilla browsers can camuflage itself as InternetExplorer + other browsers.

Hope this help you out
best regards,

Thomas A