希望你能帮助一个PHP新手（告诉我C＃，我很好！）。
我想基于PHP变量过滤XML数据。这是我的XML文件的一部分：
<?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
我从
获得2个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，但无法弄清楚如何去做。请注意，我的XML中的区域和类别节点前面有一个名称空间。
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;
?>
非常感谢任何帮助。
谢谢， 布雷特
答案 0 :(得分：1)
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;
?>
顺便说一下，你的命名空间url“https://itrent-web1.midlandsco-op.com/tlive_webrecruitment/wrd/run/../../webrecRSS.dtd”看起来有点奇怪。我认为如果删除相对的“..”内容会更加清晰，并按照以下方式进行操作：https://itrent-web1.midlandsco-op.com/tlive_webrecruitment/webrecRSS.dtd SimpleXML的child（）方法只能使用与提供的完全相同的URI RSS节点的xmlns：作业属性。