在PHP中更改XML节点元素值并保存文件 [英] Change XML node element value in PHP and save file
本文介绍了在PHP中更改XML节点元素值并保存文件的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
<testimonials>
<testimonial id="4c050652f0c3e">
<nimi>John</nimi>
<email>test@test.com</email>
<text>Some text</text>
<active>1</active>
</testimonial>
<testimonial id="4c05085e1cd4f">
<name>ats</name>
<email>some@test.ee</email>
<text>Great site!</text>
<active>0</akctive>
</testimonial>
</testimonials>
我有这个XML strcuture,我需要找到一个具体的id和 / strong>其值并保存文件。
我有一个PHP脚本根据其ID删除特定的证明:
I have this XML strcuture and i need to find a testimonial with specific id and change its value and save file. I have a PHP script deleting specific testimonial according its ID:
<?php
$xmlFile = file_get_contents('test.xml');
$xml = new SimpleXMLElement($xmlFile);
$kust_id = $_GET["id"];
foreach($xml->testimonial as $story) {
if($story['id'] == $kust_id) {
$dom=dom_import_simplexml($story);
$dom->parentNode->removeChild($dom);
$xml->asXML('test.xml');
header("Location: newfile.php");
}
}
?>
推荐答案
您可以使用 XPath 查找特定元素。 SimpleXMLElement-> xpath()返回一个(匹配)SimpleXMLElement对象的数组,即您可以访问和更改每个元素的数据,就像在你的foreach循环中一样。
You can use XPath to find the specific element. SimpleXMLElement->xpath() returns an array of (matching) SimpleXMLElement objects, i.e. you can access and change the data of each element just like you would in "your" foreach loop.
<?php
// $testimonials = simplexml_load_file('test.xml');
$testimonials = new SimpleXMLElement('<testimonials>
<testimonial id="4c050652f0c3e">
<nimi>John</nimi>
<email>test@test.com</email>
<text>Some text</text>
<active>1</active>
</testimonial>
<testimonial id="4c05085e1cd4f">
<name>ats</name>
<email>some@test.ee</email>
<text>Great site!</text>
<active>0</active>
</testimonial>
</testimonials>');
// there can be only one item with a specific id, but foreach doesn't hurt here
foreach( $testimonials->xpath("testimonial[@id='4c05085e1cd4f']") as $t ) {
$t->name = 'LALALA';
}
echo $testimonials->asXML();
// $testimonials->asXML('test.xml');
打印
<?xml version="1.0"?>
<testimonials>
<testimonial id="4c050652f0c3e">
<nimi>John</nimi>
<email>test@test.com</email>
<text>Some text</text>
<active>1</active>
</testimonial>
<testimonial id="4c05085e1cd4f">
<name>LALALA</name>
<email>some@test.ee</email>
<text>Great site!</text>
<active>0</active>
</testimonial>
</testimonials>
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