How to get Client IP address

**diwanmh** · 12-28-2007, 05:16 AM

**codeexploiter** · 12-28-2007, 05:31 AM

In PHP use the following line. The client ip will be in $ip variable

Code:

$ip = $_SERVER['REMOTE_ADDR'];

in ASP.NET use the following in the following order - first check the first option if it returns empty then use the second one

Code:

Request.ServerVariables("HTTP_X_FORWARDED_FOR");
Request.ServerVariables("REMOTE_ADDR");

**Twey** · 12-28-2007, 03:40 PM

Checking for $_SERVER['HTTP_X_FORWARDED_FOR'] would be good practice in PHP too.

Thread: How to get Client IP address