--- Wade Smart <[EMAIL PROTECTED]> wrote:

> Can one write a small script to track how many unique addresses 
> access a site? And if so, any ideas how that might be done?
> 
> Wade

The variable $_SERVER['REMOTE_ADDR'] holds the apparent IP address of the HTTP
request.

However, IP addresses are notoriously unreliable as an indication of visitors. 
For example, a DSL or dialup user may have three or more IPs in a single day's
Internet use.  However, a school or company can have hundreds of computers
which all flow through the same gateway and appear to come from the same IP
address.

Tracking unique users is normally accomplished by writing session variables
(the session id is stored as a cookie on the browser) and keeping track of each
session which has been created in a table.  

I hope this will help get you on the right track.  I'm a little too busy to
write your program :)

James
_____


James D. Keeline
http://www.Keeline.com  http://www.Keeline.com/articles
http://Stratemeyer.org  http://www.Keeline.com/TSCollection

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