English: Automatically detects the user's IP address by checking a sequence of server variables. The detection order is: <code>HTTP_X_FORWARDED_FOR</code>, <code>HTTP_X_FORWARDED</code>, <code>HTTP_FORWARDED_FOR</code>, <code>HTTP_FORWARDED</code>, <code>REMOTE_ADDR</code>, <code>HTTP_CLIENT_IP</code>, <code>HTTP_X_CLUSTER_CLIENT_IP</code>, <code>HTTP_X_REAL_IP</code>, <code>HTTP_INCAP_CLIENT_IP</code>. Stops at the first valid IP found.
Dutch: Detecteert automatisch het IP-adres van de gebruiker door een reeks servervariabelen te controleren. De bestelling van de detectie is: <code>HTTP_X_FORWARDED_FOR</code>, <code>HTTP_X_FORWARDED</code>, <code>HTTP_FORWARDED_FOR</code>, <code>HTTP_FORWARDED</code>, <code>REMOTE_ADDR</code>, <code>HTTP_CLIENT_IP</code>, <code>HTTP_X_CLUSTER_CLIENT_IP</code>, <code>HTTP_X_REAL_IP</code>, <code>HTTP_INCAP_CLIENT_IP</code>. Stopt bij het eerste geldige IP dat wordt gevonden.