我正在向发送响应xml的服务器发布xml。我的问题是，我不知道如何处理传入的xml（检查"purchased"元素的值，并将用户（基于标准）重定向到"redirect_url"元素）。下面是一个响应代码示例：
<?xml version="1.0" encoding="UTF-8"?>
<result>
<posting_error>0</posting_error>
<purchased>1</purchased>
<redirect_url>http://redirect.php?id=123</redirect_url>
</result>
下面是我的PHP片段：
<?php
# $headercontent is not referencing the response in any way, how would I do this
# (if need be)?
if($headercontent->result[0]->purchased == 1)
{
#redirect the user to the 'redirect_url' in the response xml
}
else
{
echo "the application was unsuccessful";
}
?>
如果能在这个问题上提供任何帮助，我们将不胜感激。
您可以使用simplexml读取结果XML，如下所示：
<?php
$string = <<<XML
<?xml version="1.0" encoding="UTF-8"?>
<result>
<posting_error>0</posting_error>
<purchased>1</purchased>
<redirect_url>http://redirect.php?id=123</redirect_url>
</result>
XML;
$result = simplexml_load_string($string);
if (isset($result->purchased))
{
echo $result->purchased;
}
else
{
echo "no purchased value is present...";
}
正如名称所示，simplexml_load_string读取一个XML字符串作为一个可以轻松访问的对象。