使用 PHP 中的 XPath 过滤 XML 数据（带有命名空间）
[英]Filter XML data (with a namespace) using XPath in PHP
问题描述
希望你能帮助一个 PHP 新手（给我看 C#，我很好。）。
我想根据 PHP 变量过滤 XML 数据。 这是我的 XML 文件的剪辑：
<?xml version="1.0" encoding="ISO-8859-1" ?>
<rss version="2.0" xmlns:job="https://my/namespace/URL.dtd">
<channel>
<title>search form results</title>
<link></link>
<description></description>
<item>
<title>TEST - Funeral Administrator</title>
<link> https://itrent-web1.midlandsco-op.com/tlive_webrecruitment/wrd/run//ETREC107GF.open?VACANCY_ID%3d3416494H67&WVID=6405682s15</link>
<guid> https://itrent-web1.midlandsco-op.com/tlive_webrecruitment/wrd/run//ETREC107GF.open?VACANCY_ID%3d3416494H67&WVID=6405682s15</guid>
<description><![CDATA[<b>Reference:</b> REQ000072<br /><b>Description:</b> Applications are invited for a part time, 22.5 hours per week, Funeral Administratorwhich will be based at West Bromwich Funeral Home within the West Region. Working as part of a team, duties will include co-ordinating funeral arrangements according to the clients' wishes, compiling the required administration, offering advice on the full range of services available and liaising with all relevant authorities and internal contacts. You will also be expected to assist families who wish to pay their last respects.You will be required to administer petty cash, cheque reconciliation forms, banking and purchase ledger. Other general office duties include answering the telephones, basic computer input and filing will also be key duties of this role.Applicants will have good inter-personal skills, driving licence and must also have good keyboard skills and computer literate. A flexible approach to working hours is also required.<br /><b>Region:</b> Birmingham<br /><b>Location:</b> West Bromwich<br /><b>Salary:</b> from £7.31 per hour<br /><b>Package:</b> n/a ]]></description>
<job:description>Applications are invited for a part time, 22.5 hours per week, Funeral Administratorwhich will be based at West Bromwich Funeral Home within the West Region. Working as part of a team, duties will include co-ordinating funeral arrangements according to the clients' wishes, compiling the required administration, offering advice on the full range of services available and liaising with all relevant authorities and internal contacts. You will also be expected to assist families who wish to pay their last respects.You will be required to administer petty cash, cheque reconciliation forms, banking and purchase ledger. Other general office duties include answering the telephones, basic computer input and filing will also be key duties of this role.Applicants will have good inter-personal skills, driving licence and must also have good keyboard skills and computer literate. A flexible approach to working hours is also required.</job:description>
<job:reference>REQ000072</job:reference>
<job:salary>from £7.31 per hour</job:salary>
<job:salaryval>14800</job:salaryval>
<job:minsalary>14000</job:minsalary>
<job:maxsalary>16000</job:maxsalary>
<job:category>Funeral</job:category>
<about>Mon, 8 Aug 2011 00:00:00 GMT</about>
<job:region>Birmingham</job:region>
<job:location>West Bromwich</job:location>
<job:package>n/a</job:package>
<pubDate>Mon, 25 Jul 2011 00:00:00 GMT</pubDate>
</item>
... etc - other <item> nodes follow
我得到 2 PHP 变量
$category = $_POST['category'];
$region = $_POST['region'];
我希望能够根据这些变量过滤我的 XML 但不知道该怎么做。 请注意，我的 XML 中的区域和类别节点前面有一个命名空间。
这是我的（非常基本，所以不要笑）PHP
<?php
$xml = simplexml_load_file("jobs-rss.xml");
if(isset($_POST['category']) && isset($_POST['region']))
{
$category = $_POST['category'];
$region = $_POST['region'];
$html = '';
if($category == "All" && $region == "All")
{
// Load all jobs
foreach($xml->channel->item as $item){
$ns = $item->children('https://itrent-web1.midlandsco-op.com/tlive_webrecruitment/wrd/run/../../webrecRSS.dtd');
$html .= "<h2>" . $item->title . "</h2>";
$html .= "<p><strong>Reference: </strong>" . $ns->reference . "</p>";
$html .= "<p>" . $ns->description . "</p>";
$html .= "<p><strong>Salary: </strong>" . $ns->salary . "</p>";
$html .= "<p><strong>Region: </strong>" . $ns->region . "</p>";
$html .= "<p><strong>Location: </strong>" . $ns->location . "</p>";
$html .= "<p><strong>Category: </strong>" . $ns->category . "</p>";
$html .= "<p><strong>Closing Date: </strong>" . $ns->closingdate . "</p>";
$html .= "<p><a href='" . $item->link . "'>Click here to apply for this job</a></p>";
}
}
else
{
// Filter my XML here based on a combination of the $category and $region varaibles
}
}
echo $html;
?>
任何帮助将不胜感激。
谢谢，布雷特
1 个解决方案
解决方案1
1 已采纳 2011-08-11 14:04:01
通过过滤，你的意思是这个吗？
<?php
$xml = simplexml_load_file("jobs-rss.xml");
if(isset($_POST['category']) && isset($_POST['region']))
{
$category = $_POST['category'];
$region = $_POST['region'];
$html = '';
// Load all jobs
foreach($xml->channel->item as $item)
{
$ns = $item->children('https://itrent-web1.midlandsco-op.com/tlive_webrecruitment/wrd/run/../../webrecRSS.dtd');
if ($category != "All" && $category != $ns->category) continue;
if ($region != "All" && $region != $ns->region) continue;
$html .= "<h2>" . $item->title . "</h2>";
$html .= "<p><strong>Reference: </strong>" . $ns->reference . "</p>";
$html .= "<p>" . $ns->description . "</p>";
$html .= "<p><strong>Salary: </strong>" . $ns->salary . "</p>";
$html .= "<p><strong>Region: </strong>" . $ns->region . "</p>";
$html .= "<p><strong>Location: </strong>" . $ns->location . "</p>";
$html .= "<p><strong>Category: </strong>" . $ns->category . "</p>";
$html .= "<p><strong>Closing Date: </strong>" . $ns->closingdate . "</p>";
$html .= "<p><a href='" . $item->link . "'>Click here to apply for this job</a></p>";
}
}
echo $html;
?>
顺便说一句，您的命名空间 url “ https://itrent-web1.midlandsco-op.com/tlive_webrecruitment/wrd/run/../../webrecRSS.dtd ”看起来有点奇怪。 我认为如果您删除相关的“..”内容并使其如下所示会更清楚： https://itrent-web1.midlandsco-op.com/tlive_webrecruitment/webrecRSS.dtd SimpleXML 的 child() 方法只会起作用具有与 RSS 节点的 xmlns:job 属性中提供的完全相同的 URI。
使用 Xpath 从带有命名空间的 XML 获取数据
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