[PHP] Re: getting the IP address off a visitor

2002-07-11 Thread Richard Lynch
>I am new to PHP and need some help. >I was wondering if there is a way to get hold of the IP address of a site >visitor with PHP. I'm trying to develop an interaction where the server >would recognise a new visitor from a returning visitor via the IP address. IP address is useless for identifica

[PHP] Re: getting the IP address off a visitor

2002-07-09 Thread Kondwani Spike Mkandawire
Despite all downfalls of using IP addresses, if you are in North America most people in a University or business environment use a fast connection (DSL or Cable) you may choose to use the following chunk of code to retrieve someone's IP number if (getenv(HTTP_X_FORWARDED_FOR)){ $ip=getenv(HTTP

[PHP] Re: getting the IP address off a visitor

2002-07-08 Thread Mark McCulligh
Here is a function a found on php.net that turns the IP. Everything that Justin said is true too. If they have a dial-up user or are behind a proxy server you can't track them. Also if you are saving this to a database table it will get very big fast, just like Justin said. I would create a ta