http请求不成功下面代码为HTTP请求代码。
第二次请求不成功，请帮忙看一下错在哪里？
正常流程：发送http请求，401响应，再次发送带验证的http请求，返回200。结束。
注：代码中的账号密码都是默认的，所以没有提取第一次返回的数据中的账号，密码。第二次请求中的账号密码都用默认数据。
function Socket_Connect_HTTP_Post($server, $port, $dir, $file, $data, $type = '') {$send_url = str_replace("%2F", "/", rawurlencode(rawurldecode(urldecode($dir . $file))));$method = "POST";$http_header_array["ALL"][] = "Accept: */*";$http_header_array["ALL"][] = "Referer: http://".$server."/";$http_header_array["ALL"][] = "Accept-Language: en-us,zh-cn";$http_header_array["ALL"][] = "User-Agent: Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1)";$http_header_array["ALL"][] = "Connection: Keep-Alive";$http_header_array["ALL"][] = "Host: ".$server;$http_header_array["ALL"][] = "urn:po-processor";if(!empty($type)) {$http_header_array["ALL"][] = "Authorization: Digest realm=\"www.fkhl.sh.cn\", username=\"FHL3301009\", nonce=\"MTM3MTc5Njg3Mjg3NjpkN2RmYmE4ZDFmMzNiZGQ0ZTAxMDJjMTNjZjI3MDQ2ZQ==\", uri=\"/ipcam/soapservice\", nc=00000001, cnonce=\"51c3f331ca5600006784\", response=\"dc0f6160daa71c7e86416e0f1cb63d59\", qop=\"auth\"";}$http_header_array["ALL"][] = "SOAPAction:http://www.liveipc.com/UserService/UserOperation";$http_header_array["POST"][] = "Cache-Control: no-cache";$http_header_array["POST"][] = "Content-Type: text/xml";$http_header_array["POST"][] = "Content-Length: ".strlen($data);if (is_array($http_header_array["ALL"])) {$http_header_str_all = implode("\r\n", $http_header_array["ALL"]);}if (is_array($http_header_array[$method])) {$http_header_str_all .= "\r\n".implode("\r\n", $http_header_array[$method]);}$send_all = "POST ".$send_url." HTTP/1.1\r\n".$http_header_str_all."\r\n\r\n";$send_all .= $data."\r\n\r\n";$fp_send = fsockopen($server, $port, $errno, $errstr ,30);if ($fp_send){$can_rcv = 0;fputs($fp_send, $send_all);stream_set_timeout($fp_send, 120);while(!feof($fp_send)){$content_t = fgets($fp_send, 1024);if ((trim($content_t) == "") && !$can_rcv){$can_rcv = 1;$content_t = fgets($fp_send, 1024);}if ($can_rcv == 1 and strlen($content_t)>5){$reply_str .= $content_t;}}$stream_status = stream_get_meta_data($fp_send);fclose($fp_send);if ($stream_status[timed_out]){$reply_str = "";}}return $reply_str;}$soap_data = "xml version='1.0' encoding='UTF-8'?1.0.0GBKUserRegistrationc7c92fc2882f41f92249fac90aad7bb6