getIP function

[acctman]

are these all the combinations for getting a users IP

 

function getIP() {
        if (getenv("HTTP_CLIENT_IP")) $ip = getenv("HTTP_CLIENT_IP");
        else if(getenv("HTTP_X_FORWARDED_FOR")) $ip = getenv("HTTP_X_FORWARDED_FOR");
        else if(getenv("REMOTE_ADDR")) $ip = getenv("REMOTE_ADDR");
        else $ip = "UNKNOWN";
        return $ip;
        }

[gorgo666]

I don't quite understand your question, but I was sure that REMOTE_ADDR was the only thing you needed to do, as you put there.

[chad101]

$_SERVER

<?php
function getip()  
{	
	if (isset($_SERVER)) {		
		if (isset($_SERVER["HTTP_X_FORWARDED_FOR"])) {  			
			$ip_addr = $_SERVER["HTTP_X_FORWARDED_FOR"]; 		
		} elseif (isset($_SERVER["HTTP_CLIENT_IP"])) {  			
			$ip_addr = $_SERVER["HTTP_CLIENT_IP"]; 		
		} else { 			
			$ip_addr = $_SERVER["REMOTE_ADDR"]; 		
		}	
	} else { 		
		if (getenv('HTTP_X_FORWARDED_FOR')) {  			
			$ip_addr = getenv( 'HTTP_X_FORWARDED_FOR' ); 		
		} elseif (getenv('HTTP_CLIENT_IP')) {  			
			$ip_addr = getenv('HTTP_CLIENT_IP'); 		
		} else {  			
			$ip_addr = getenv('REMOTE_ADDR'); 		
		}	
	}
	return $ip_addr;
}
?>

[Goldeneye]

$_SERVER['HTTP_X_FORWARDED_FOR'] is usually used to detecting if a user is behind a proxy

$_SERVER['HTTP_CLIENT_IP'] I believe, is what the user's real IP address is IF they are behind a proxy.

 

So if you don't care about proxies, $_SERVER['REMOTE_ADDR'] will do just fine.