php 动态调用xml

<?php
// 加载 XML 文件
$xmlFile = 'data.xml';
$doc = new DOMDocument();
$doc->load($xmlFile);

// 获取根元素
$root = $doc->documentElement;

// 使用 XPath 查询
$xpath = new DOMXPath($doc);
$nodes = $xpath->query('//item[name="example"]');

foreach ($nodes as $node) {
    echo "ID: " . $node->getAttribute('id') . "\n";
    echo "Name: " . $node->getElementsByTagName('name')->item(0)->nodeValue . "\n";
    echo "Description: " . $node->getElementsByTagName('description')->item(0)->nodeValue . "\n";
}
?>

<?php
libxml_use_internal_errors(true);
$doc = new DOMDocument();
$doc->load($xmlFile);

if ($doc->load($xmlFile) === false) {
    foreach (libxml_get_errors() as $error) {
        echo $error->message;
    }
    libxml_clear_errors();
}
?>

<?php
$xpath = new DOMXPath($doc);
$nodes = $xpath->query('//item[name="example"]');

if ($nodes->length === 0) {
    echo "No nodes found with the given XPath expression.";
}
?>