Question

我需要查询一个XML文档，然后显示特定的标记值，例如名字、姓氏、组(部门)、职称。

我正在使用XMLReader，因为我可能需要处理大型XML文件。我使用DomXPath来过滤数据，但是我不知道如何检索每个元素的nodeName和value。下面的代码只返回成员（member）作为节点名称？

任何帮助都将不胜感激。

<?php
    $reader = new XMLReader();
    $reader->open( include/staff.xml );

    while ($reader->read()){
        switch($reader->nodeType){
            case(XMLREADER::ELEMENT):
                if($reader->localName ===  staff ){
                    $node = $reader->expand();
                    $dom = new DomDocument();
                    $dom->formatOutput = true;
                    $n = $dom->importNode($node, true);
                    $dom->appendChild($n);
                    $xp = new DomXpath($dom);
                    $res = $xp->query("/staff/member[groups= HR ]");
                }
        }
    }
    echo $res->item(0)->nodeName;
    echo $res->item(0)->nodeValue;
?>

Answer 1

仍有些粗糙，但这是我追求的目标。我发现我的xpath查询引起了问题。

<?php
$reader = new XMLReader();
$reader->open( include/staff.xml );
$keywords =   ;
$query = "//member[groups= Research ][contains(translate(forename, ABCDEFGHIJKLMNOPQRSTUVWXYZ , abcdefghijklmnopqrstuvwxyz ) , $keywords ) or contains(translate(surname, ABCDEFGHIJKLMNOPQRSTUVWXYZ , abcdefghijklmnopqrstuvwxyz ),  $keywords )]/*";
while ($reader->read()){
    switch($reader->nodeType){
        case(XMLREADER::ELEMENT):
            if($reader->localName ===  staff ){
                $node = $reader->expand();
                $dom = new DomDocument();
                $dom->formatOutput = true;
                $n = $dom->importNode($node, true);
                $dom->appendChild($n);
                $xp = new DomXpath($dom);
                $results = $xp->query($query);
            }
    }
}
$member = array();
$staff = array();
echo $results->length;
for($i=1; $i<$results->length; $i++){
    if($results->item($i)->nodeName !==  id ){
        $member[$results->item($i)->nodeName] = $results->item($i)->nodeValue;
    }else{
        array_push($staff, $member);
    }
}
array_push($staff, $member);
var_dump($staff);

Sorry, there is no text provided to translate into Chinese. Please provide the text that you want to be translated.

Answer 2

尝试 (Chángshì)

$reader->name

AND: 和

$reader->value

They supposed to be "The qualified name of the node" AND: 和 "The text value of the node" according to this page http://www.php-editors.com/php_manual/ref.xmlreader.html

很明显人们是这样使用它的：http://www.google.com/codesearch/p?hl=pl#_rn0kgFhkQA/redir/docvert/60463/url_tgz/docvert-3.2.3.tar.gz%7CP-uLGAoGHyM/docvert/core/process/ParseOpenDocument.php&q=xmlreader%20file:%5C.php$

这里可以找到更多的使用实例:。 http://www.google.com/codesearch?q=xmlreader+file:php

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