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Sep 09, 2016 am 08:13 AM

php adds data to xml file

: Time: 2015-12-17 06:30:37 Source: Internet

Introduction: php adds data to xml file

xml file: stu.xml:

Copy the codeThe code is as follows:

 Zhang San
 < yuwen>80
 90
 70


 李思 
 60
 90
 75

The above file stu.xml provides some student data.
Now you need to add a zongfen attribute to each xuesheng node and its value is equal to the value of yuwen+shuxue+yingyu
as shown below:

Copy the codeThe code is as follows:

 Zhang San
 < yuwen>80
 90
 70
 240

& lt;xuesheng>
 < ;name>李思
 60
 90
 75
 2225 

Use php to implement:

Copy the codeThe code is as follows:

$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 "The node already exists, no more adding!";
 continue;
 }
 $zongfen = $yuwen+$shuxue+$yingyu; 
 $newNode = $doc->createElement("zongfen",$zongfen);
 $stu->appendChild($newNode);
 }
 $result = $doc->saveXML('stu.xml') ;
?>

PHP operates XML class DOMDocument
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Example code learning for generating xml files with PHP

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