按元素过滤XML [英] Filter XML by elements
问题描述
<?php
$files = glob( 'docs/*.xml' );
if ( isset( $_GET['doctype'] ) == "all" ) {
foreach ( $files as $file ) {
$xml = new SimpleXMLElement( $file, 0, true );
echo'
<tr>
<td id="'. $xml->doctype .'" name="'. $xml->doctype .'" class="mainTable">' . $xml->doctype . '</td>
<td><a href="viewdoc.php?docname=' . basename( $file, '.xml' ) . '&username='. $xml->startedby .'&myname='. $_SESSION['username'] .'">' . basename( $file, '.xml' ) . '</a></td>
<td><a href="viewprofile.php?name='. $xml->startedby .'">'. $xml->startedby .'</a></td>
<td>'. $xml->date .'</td>
<td>* * * * *</td>
<td>'. filesize( $file ) .'kb</td>
</tr>
';
}
}
else if ( isset( $_GET['doctype'] ) == "doc" ) {
foreach ( $files as $file ) {
$xml = new SimpleXMLElement( $file, 0, true );
// code filter the $xml->doctype by equal it to currect value - which i'm not sure how to do.
echo'
<tr>
<td id="'. $xml->doctype .'" name="'. $xml->doctype .'" class="mainTable">' . $xml->doctype . '</td>
<td><a href="viewdoc.php?docname=' . basename( $file, '.xml' ) . '&username='. $xml->startedby .'&myname='. $_SESSION['username'] .'">' . basename( $file, '.xml' ) . '</a></td>
<td><a href="viewprofile.php?name='. $xml->startedby .'">'. $xml->startedby .'</a></td>
<td>'. $xml->date .'</td>
<td>* * * * *</td>
<td>'. filesize( $file ) .'kb</td>
</tr>
';
}
}
?>
我只有几个<a>
标记(相同的链接,home.php),每个标记都有不同的$ _GET链接( home.php?doctype = doc,home.php?doctype = all等.).
现在,我希望使用if语句过滤每个文档类型,并检查$_GET['doctype']
是否等于我的值(假设值是word,excel,powerpoint等.).
I got few <a>
tags (same link, home.php), each one got different $_GET link (home.php?doctype=doc, home.php?doctype=all, etc..).
Now i wish to filter each doctype by using if statement and check $_GET['doctype']
if he equals to my value (assuming the value is word, excel, powerpoint, etc..).
我的问题是:假设$ xml-> doctype等于我的值之一,如何过滤doctype?
My question is: how can I filter doctype assuming that I equal $xml->doctype to one of my values?
推荐答案
为此,我将使用位掩码: http://php.net/manual/en/language.operators.bitwise.php
i would use a bitmask for this: http://php.net/manual/en/language.operators.bitwise.php
<?php
// define your types and groups:
$listedTypes["TYPE_MSWORD"] = 1;
$listedTypes["TYPE_MSEXCEL"] = 2;
$listedTypes["TYPE_MSPOWERPOINT"] = 4;
$listedTypes["TYPE_OFFICE"] = $listedTypes["TYPE_MSWORD"] + $listedTypes["TYPE_MSEXCEL"] + $listedTypes["TYPE_MSPOWERPOINT"];
$listedTypes["TYPE_HTML"] = 8;
$listedTypes["TYPE_SVG"] = 16;
$listedTypes["TYPE_W3C"] = $listedTypes["TYPE_HTML"] + $listedTypes["TYPE_SVG"];
$listedTypes["TYPE_ALL"] = $listedTypes["TYPE_OFFICE"] + $listedTypes["TYPE_W3C"];
// try to open the page.php?doctype=TYPE_MSWORD
// or page.php?doctype=TYPE_ALL
if(!isset($_GET['doctype'])) $_GET['doctype'] = "TYPE_ALL";
if(!isset($listedTypes[$_GET['doctype']])) $_GET['doctype'] = "TYPE_ALL";
$requestedType = $listedTypes[$_GET['doctype']];
foreach ( $files as $file )
{
$xml = new SimpleXMLElement( $file, 0, true );
if($xml->doctype == "......") $fileType = $listedTypes["TYPE_MSWORD"];
elseif($xml->doctype == ".........") $fileType = $listedTypes["TYPE_MSEXCEL"];
elseif($xml->doctype == ".........") $fileType = $listedTypes["TYPE_MSPOWERPOINT"];
//... continue
// then check if the $type matches the $selection of $_GET['doctype']
// if the filetype is in the requested file type group, it will be shown
if($fileType & $requestedType)
{
echo'
<tr>
<td id="'. $xml->doctype .'" name="'. $xml->doctype .'" class="mainTable">' . $xml->doctype . '</td>
<td><a href="viewdoc.php?docname=' . basename( $file, '.xml' ) . '&username='. $xml->startedby .'&myname='. $_SESSION['username'] .'">' . basename( $file, '.xml' ) . '</a></td>
<td><a href="viewprofile.php?name='. $xml->startedby .'">'. $xml->startedby .'</a></td>
<td>'. $xml->date .'</td>
<td>* * * * *</td>
<td>'. filesize( $file ) .'kb</td>
</tr>
';
}
}
这篇关于按元素过滤XML的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持IT屋!