开发内网穿透时遇到了个问题

HTTP/1.1 302 Found
Location: /
Set-Cookie: gogs_awesome=wpjscc; Path=/; Max-Age=604800; HttpOnly
Set-Cookie: gogs_incredible=4405ba47f2a3d526a60d380d5ef0bb03f274345fdc990d3a9b7196f51655bb5529be; Path=/; Max-Age=604800; HttpOnly
Set-Cookie: _csrf=; Path=/; Max-Age=0
Set-Cookie: redirect_to=; Path=/; Max-Age=0
X-Content-Type-Options: nosniff
X-Frame-Options: DENY
Date: Mon, 30 Aug 2021 08:35:32 GMT
Content-Length: 0Copy

            preg_match("/Content-Length:\s*\d*/i", $connection->data, $paramsLength);
            $headerEnd = \strpos($connection->data, "\r\n\r\n");
            $headerLength = strlen(substr($connection->data, 0, $headerEnd));
            if (!empty($paramsLength)) {
                $connection->totalContentLength = (int)str_replace("Content-Length: ", '', $paramsLength[0]);
                echo "总的数据包长度：{ $connection->totalContentLength }";
                $connection->receveContentLength += strlen($data);
                echo "接收到的数据包长度： " . ($connection->receveContentLength - $headerLength - 4);
                if ($connection->totalContentLength > $connection->receveContentLength) {
                    echo "\r\n数据包不完整，继续接受数据";
                    return;
                }
            }
            $data = $connection->data;
            preg_match("/Host:\s.*/i", serialize($connection->data), $match);Copy