使用PHP获取USPS订单跟踪状态 [英] Obtaining USPS orders tracking status with PHP

问题描述

尝试使用USPS跟踪API检索USPS订单的状态时引发错误.

Error is thrown when trying to retrieve the status of a USPS order using the USPS Tracking API.

但是，在运行我根据USPS手册构建的代码时，出现以下错误: " 80040B19XML语法错误:请检查XML请求以查看是否可以对其进行解析.USPSCOM:: DoAuth "

However, when running the code I built based on the USPS manual, I am getting the following error: "80040B19XML Syntax Error: Please check the XML request to see if it can be parsed.USPSCOM::DoAuth"

链接至手册: https ://www.usps.com/business/web-tools-apis/track-and-confirm-v1-3a.htm

这是我的代码:

$trackingNumber = 123456;
$url = "http://production.shippingapis.com/shippingAPI.dll";
$service = "TrackV2";
$xml = rawurlencode("
<TrackRequest USERID='MYID'>
    <TrackID ID=".$trackingNumber."></TrackID>
    </TrackRequest>");
$request = $url . "?API=" . $service . "&XML=" . $xml;
// send the POST values to USPS
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL,$request);
curl_setopt($ch, CURLOPT_HEADER, false);
curl_setopt($ch, CURLOPT_HTTPGET, true);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
// parameters to post

$result = curl_exec($ch);
//var_dump($result);
curl_close($ch);

$response = new SimpleXMLElement($result);
//print_r($result);
$deliveryStatus = $response->TrackResponse->TrackInfo->Status;
echo $deliveryStatus;

我在做什么错了?

推荐答案

虽然我确定原作者现在已经解决了他们的问题，但在进入此示例后发现它不起作用时，我认为我会解决这些问题:

While I'm sure the original author resolved their issue by now, having come to this example and finding it didn't work I figured I would address the issues:

首先要解决的是，如果跟踪号是所有数字(如上例所示)，PHP会将跟踪号转换为科学计数法(我使用的测试跟踪号是22个字符的全数字字符串).因此，我将数字括在单引号中，以将其视为字符串而不是数字.这个问题只有在解决下一个问题之后才发现.

First thing to address is that PHP converts the tracking number into scientific notation if the tracking number is all numbers as in the example above (test tracking number I used was an all numeric string of 22 characters). So I encased the numbers in single quotes to treat it as a string instead of a number. This issue was only discovered after the next one was addressed.

对于$ xml，ID需要用双引号引起来.因此代码应为:

for the $xml, the ID needs to be encased in double quotes. So the code should be:

$xml = rawurlencode("
<TrackRequest USERID='MYID'>
    <TrackID ID=\"".$trackingNumber."\"></TrackID>
    </TrackRequest>");

进行这两项更改解决了海报的原始问题.希望这对在这里也迷路的人有所帮助.

Making these two changes resolved the posters original issue. Hope this helps anyone who also stumbles here.

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