获取XMLReader的属性

debugcn 发表于 Dev

朱利安

我在提取以下XML的属性时遇到问题。我可以获取以下属性：

<Formats>
   <Format Type="6" Price="7.00" MaxDownloads="3" Status="active" ExclusiveRights="CA AU NZ ZA GB IE " NotForSale="AU NZ " />
 </Formats>

但是我正在努力获取以下属性：

<Contributors>
    <Contributor Code="A01" Text="By (author)">Cairns, Warwick</Contributor>
   </Contributors>

我既需要“ A01”，也需要“凯恩斯，沃里克”。

任何帮助是极大的赞赏。

朱利安

下面的XML：

<?xml version="1.0"?>
    <Extract>
      <EBook EAN="9781849892100">
        <Title>About The Size Of It</Title>
        <SubTitle>A Common Sense Approach To How People Measure Things</SubTitle>
        <Publisher>General Non-Fiction</Publisher>
        <Imprint>Macmillan</Imprint>
        <PublicationDate>07/04/2011</PublicationDate>
        <Contributors>
          <Contributor Code="A01" Text="By (author)">Cairns, Warwick</Contributor>
        </Contributors>
        <BicSubjects>
          <Bic Code="PDZ">Popular science</Bic>
        </BicSubjects>
        <Formats>
          <Format Type="6" Price="7.00" MaxDownloads="3" Status="active" ExclusiveRights="CA AU NZ ZA GB IE " NotForSale="AU NZ " />
        </Formats>
        <ShortDescription>     A serious and seriously funny book about weights and measures. It explains what they are, how they come about and how they are formed and shaped by the one guiding principle of measurement that no one ever mentions: that most of us have better things to think about. This is the only book devoted to the mishmash of bodges, estimates   </ShortDescription>
        <PhysicalEditionEan>9780330450300</PhysicalEditionEan>
      </EBook>
    </Extract>

到目前为止，我的代码已获得所需的值。属性不能通过:(

$z = new XMLReader;
$z->open('files/eBiblio.xml');

$doc = new DOMDocument;

# move to the first node
while ($z->read() && $z->name !== 'EBook');

# now that we're at the right depth, hop to the next <product/> until the end of the tree
while ($z->name === 'EBook')
{

    $node = simplexml_import_dom($doc->importNode($z->expand(), true));

    # Get the value of each node
    $title = mysql_real_escape_string($node->Title);
    $Subtitle = mysql_real_escape_string($node->SubTitle);
    $ShortDescription = mysql_real_escape_string($node->ShortDescription);
    $Publisher = mysql_real_escape_string($node->Publisher);
    $Imprint = mysql_real_escape_string($node->Imprint);

    # Get attributes
    $isbn = $z->getAttribute('EAN');

    $contributor = $node->Contributors;
    $author = $contributor[0]->Contributor;
    $author = mysql_real_escape_string($author);

    $BicSubjects = $node->BicSubjects;
    $Bic = $BicSubjects[0]->Bic;
    $Bic = mysql_real_escape_string($Bic);


    $formats = $node->Formats;
    $type  = $formats[0]->Format;
    $price = $type[0]['Price'];
    $ExclusiveRights = $type[0]['ExclusiveRights'];
    $NotForSale = $type[0]['NotForSale'];

    # echo "<pre>".print_r($node,true)."</pre>";
    # die();

詹姆斯·比克特（James Birkett）

看看SimpleXML。特别是指向attribute（）的链接。这应该可以帮助您入门。

如果您仍然有问题，请附上您正在使用的php代码。

编辑：

正如Sundar所说，简单xml易于使用，但是，如果您的xml文件很大，则XMLReader和simplexml的组合将使用较少的内存，因为仅存储当前节点。

while ($z->name === 'EBook')
{
  $node = simplexml_import_dom($doc->importNode($z->expand(), true));
  #print EAN
  echo $node->attributes()->EAN;

  ...

  $z->next('EBook');
}

查看如何在php中使用xmlreader

本文收集自互联网，转载请注明来源。

如有侵权，请联系[email protected] 删除。