<code>function get_client_ip()<br />{<br />if(getenv('HTTP_CLIENT_IP'))<br />{<br />　$client_ip = getenv('HTTP_CLIENT_IP');<br />}<br />elseif(getenv('HTTP_X_FORWARDED_FOR'))<br />{<br />　$client_ip = getenv('HTTP_X_FORWARDED_FOR');<br />}<br />elseif(getenv('REMOTE_ADDR'))<br />{<br />　$client_ip = getenv('REMOTE_ADDR');<br />}<br />else<br />{<br />　$client_ip = $HTTP_SERVER_VAR['REMOTE_ADDR'];<br />}<br />　return $client_ip;<br />}</code>