php获取到两个ip解决方法

	  

$out = "POST $path HTTP/1.1\r\n";

$out .= "Accept: */*\r\n";

$out .= "Content-Type: application/x-www-form-urlencoded\r\n";

$out .= "User-Agent: $_SERVER[HTTP_USER_AGENT]\r\n";

$out.="X-Forwarded-For: ".$ip."\r\n"; //主要是这里来构造IP

$out .= "Host: ".$domain_ip."\r\n";

$out .= "Content-Length: ".$content_length."\r\n";

$out .= "Connection: close\r\n\r\n";

$out .= $content."\r\n\r\n"; //提交的内容

      if (getenv("HTTP_X_FORWARDED_FOR")) 

	{ 

		$ip = getenv("HTTP_X_FORWARDED_FOR"); 

	} 

	elseif (getenv("HTTP_CLIENT_IP")) 

	{ 

		$ip = getenv("HTTP_CLIENT_IP"); 

	} 

	elseif (getenv("REMOTE_ADDR"))

	{ 

		$ip = getenv("REMOTE_ADDR"); 

	} 

	else 

	{ 

		$ip = ""; 

	}