Código:
<? function Saber_IP(){ if(getenv("HTTP_CLIENT_IP") && strcasecmp(getenv("HTTP_CLIENT_IP"), "unknown")){ $ip = getenv("HTTP_CLIENT_IP"); } elseif(getenv("HTTP_X_FORWARDED_FOR") && strcasecmp(getenv("HTTP_X_FORWARDED_FOR"), "unknown")){ $ip = getenv("HTTP_X_FORWARDED_FOR"); } elseif(getenv("REMOTE_ADDR") && strcasecmp(getenv("REMOTE_ADDR"), "unknown")){ $ip = getenv("REMOTE_ADDR"); } elseif(isset($_SERVER['REMOTE_ADDR']) && $_SERVER['REMOTE_ADDR'] && strcasecmp($_SERVER['REMOTE_ADDR'], "unknown")){ $ip = $_SERVER['REMOTE_ADDR']; } else { $ip = "Unknown"; } return $ip; } //La IP: $IP = Saber_Ip(); echo "Tu IP es: ".$IP; ?>
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![sonriente](http://static.forosdelweb.com/fdwtheme/images/smilies/smile.png)