获取响应xml并使用php curl重定向

Question

I am having some trouble getting an xml response from a server, this is the first time I have coded with xml in PHP using cURL (posting parsed xml to server, and receiving a response xml) - all the code is below: 我在从服务器获取xml响应时遇到了一些麻烦，这是我第一次使用cURL在PHP中使用xml编码（将解析的xml发布到服务器，并接收响应xml）-所有代码如下：

HTML: HTML：

<html>
<head>
<title>test</title>
</head>
<body>
<form action="3FieldSample.php" method="post" enctype="multipart/form-data" >
<div class="form-field title">
    <div class="input select"><label for="title">Title</label>
    <select name="title" id="title" value="mr">
<option value="mr">Mr</option>
<option value="mrs">Mrs</option>
<option value="dr">Dr</option>
<option value="miss">Miss</option>
<option value="ms">Ms</option>
</select></div>     </div>


<div class="form-field float-left">
        <div class="input select"><label for="fname">First Name</label>
        <input name="fname" value="" maxlength="150" width="100%" type="text" id="fname" /></div>
</div>

<div class="form-field float-left">
            <div class="input text"><label for="ApplicationPaydayAppLastName">Last Name</label>
            <input name="lname" value="" maxlength="150" type="text" id="lname"/></div>     
        </div>
<div class="submit">
 <input type="image" src = "submit.jpg" width="25%" alt="submit" id="submit">
</div>
</form>
</body>
</html>

=============================================== ===============================================

The processing: 加工：

<?php
header('Content-Type: text/xml');
$xmldoc = new DomDocument( '1.0' );
$xmldoc->preserveWhiteSpace = false;
$xmldoc->formatOutput = true;
$url = "http://thesite_2_post_2.com/process.php";
$title = $_POST['title'];
$fname = $_POST['fname'];
$lname = $_POST['lname'];

$post_string = '<?xml version="1.0" encoding="UTF-8"?>     
<lead>
<applicant>
        <title>'. $title.'</title>
        <fname>'. $fname.'</fname>
        <lname>'. $lname.'</lname>
</applicant>
</lead>';

$header  = "POST HTTP/1.0 \r\n";
$header .= "Content-type: text/xml \r\n";
//#$header .= "Content-type: text/html \r\n";
$header .= "Content-length: ".strlen($post_string)." \r\n";
$header .= "Content-transfer-encoding: text \r\n";
#$header .= "Connection: close \r\n\r\n"; 
$header .= $post_string;
print ($post_string);

$ch = curl_init();
curl_setopt($ch, CURLOPT_HEADER, 0); 
curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_POST, true);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_POSTFIELDS, $header);
###curl_setopt($ch, CURLOPT_POSTFIELDS, $post_string);
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);

$data = curl_exec($ch); 
curl_close($ch);
$objResult = json_decode($data);

#
#  This is an example of how I'm supposed to deal with the response?  
#  
#
$_SESSION['price'] = 0;
if ($objResult->purchased == 1) {
$_SESSION['price'] = $objResult->price;
$url = urlencode($objResult->redirect_url);
header('Location: '.$url);
print $objResult;
}
else
{
   echo "something went wrong";
}

?>

The last snippet above is an example of how I'm supposed to deal with the response which I'm not getting. 上面的最后一个片段是一个示例，说明了如何应对未得到的响应。 This is the output I am getting : This page contains the following errors: error on line 8 at column 8: Extra content at the end of the document. 这是我得到的输出： 此页面包含以下错误：第8行第8列的错误：文档末尾的额外内容。 Below is a rendering of the page up to the first error. 下面是直到第一个错误的页面呈现。

mr peter griffin 彼得·格里芬先生

When I view the source I get this output (without the leading hashtags): 当我查看源代码时，我得到以下输出（不带前导标签）：

#<?xml version="1.0" encoding="UTF-8"?>     
#<lead>
#<applicant>
    #<title>mr</title>
    #<fname>peter</fname>
    #<lname>griffin</lname>
#</applicant>
#</lead>something went wrong

Any help in getting a response xml from the server would be appreciated. 从服务器获取响应xml的任何帮助将不胜感激。

Answer 1

cURL handles many details of the HTTP request for you, including headers. cURL为您处理HTTP请求的许多详细信息，包括标头。 Sending the XML document could be simplified like this: 发送XML文档可以这样简化：

[...]
$cu = curl_init($url);
curl_setopt($cu, CURLOPT_POSTFIELDS, $post_fields); // This implies CURLOPT_POST = true.
curl_setopt($cu, CURLOPT_RETURNTRANSFER, true);
curl_setopt($cu, CURLOPT_HTTPHEADER, [
  "Content-Type: text/xml"
]);
$data = curl_exec($cu);
[...]

You are printing the XML document and later executing header function. 您正在打印XML文档，稍后再执行标头功能。 This won't work, because headers must be set before any output is done. 这将不起作用，因为必须在完成任何输出之前设置标题。

As a side note, you should be cautious inserting POST parameters without validation in your XML. 附带说明一下，您应该谨慎插入POST参数，而无需在XML中进行验证。 This code: 这段代码：

$title = $_POST['title'];

poses a vulnerability, because an attacker can send anything in HTTP requests. 造成漏洞，因为攻击者可以在HTTP请求中发送任何内容。 What if some XML is sent as the value? 如果发送一些XML作为值怎么办？

获取响应xml并使用php curl重定向

问题描述

=============================================== ===============================================

1 个解决方案

解决方案1
1 已采纳 2014-10-11 12:06:45

获取响应xml并使用php curl重定向

问题描述

=============================================== ===============================================

1 个解决方案

解决方案1 1 已采纳 2014-10-11 12:06:45

解决方案1
1 已采纳 2014-10-11 12:06:45