php获取到两个ip解决方法

	  <br />
$out = "POST $path HTTP/1.1\r\n";<br />
$out .= "Accept: */*\r\n";<br />
$out .= "Content-Type: application/x-www-form-urlencoded\r\n";<br />
$out .= "User-Agent: $_SERVER[HTTP_USER_AGENT]\r\n";<br />
$out.="X-Forwarded-For: ".$ip."\r\n"; //主要是这里来构造IP<br />
$out .= "Host: ".$domain_ip."\r\n";<br />
$out .= "Content-Length: ".$content_length."\r\n";<br />
$out .= "Connection: close\r\n\r\n";<br />
$out .= $content."\r\n\r\n"; //提交的内容<br />

<br />
      if (getenv("HTTP_X_FORWARDED_FOR")) <br />
	{ <br />
		$ip = getenv("HTTP_X_FORWARDED_FOR"); <br />
	} <br />
	elseif (getenv("HTTP_CLIENT_IP")) <br />
	{ <br />
		$ip = getenv("HTTP_CLIENT_IP"); <br />
	} <br />
	elseif (getenv("REMOTE_ADDR"))<br />
	{ <br />
		$ip = getenv("REMOTE_ADDR"); <br />
	} <br />
	else <br />
	{ <br />
		$ip = ""; <br />
	} <br />