xml文件:stu.xml:
php" id="highlighter_701183">
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<?xml version= "1.0" encoding= "utf-8" ?>
<AllData>
<xueshengmen>
<xuesheng>
<name>张三</name>
<yuwen>80</yuwen>
<shuxue>90</shuxue>
<yingyu>70</yingyu>
</xuesheng>
<xuesheng>
<name>李四</name>
<yuwen>60</yuwen>
<shuxue>90</shuxue>
<yingyu>75</yingyu>
</xuesheng>
</xueshengmen>
</AllData>
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以上文件stu.xml提供了部分学生数据。
现在需要在每个xuesheng的节点里面添加一个zongfen的属性并且它的值等于yuwen+shuxue+yingyu的值
如下所示:
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<?xml version= "1.0" encoding= "utf-8" ?>
<AllData>
<xueshengmen>
<xuesheng>
<name>张三</name>
<yuwen>80</yuwen>
<shuxue>90</shuxue>
<yingyu>70</yingyu>
<zongfen>240</zongfen>
</xuesheng>
<xuesheng>
<name>李四</name>
<yuwen>60</yuwen>
<shuxue>90</shuxue>
<yingyu>75</yingyu>
<zongfen>2225</zongfen>
</xuesheng>
</xueshengmen>
</AllData>
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用php来实现:
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<?php
$doc = new DOMDocument();
$doc ->load( ‘stu.xml' );
$students = $doc ->getElementsByTagName( “xuesheng” );
foreach ( $students as $stu ){
$yuwen = $stu ->getElementsByTagName( “yuwen” )->item(0)->nodeValue;
$shuxue = $stu ->getElementsByTagName( “shuxue” )->item(0)->nodeValue;
$yingyu = $stu ->getElementsByTagName( “yingyu” )->item(0)->nodeValue;
$zongfen = $stu ->getElementsByTagName( “zongfen” )->item(0)->nodeValue;
if ( $zongfen ){
echo “节点已经存在了,不再添加!”;
continue ;
}
$zongfen = $yuwen + $shuxue + $yingyu ;
$newNode = $doc ->createElement(“zongfen”, $zongfen );
$stu ->appendChild( $newNode );
}
$result = $doc ->saveXML(‘stu.xml');
?>
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以上这篇php添加数据到xml文件的简单例子就是小编分享给大家的全部内容了,希望能给大家一个参考,也希望大家多多支持服务器之家。