PHP中SimpleXML怎么使用_PHP中SimpleXML使用教程

• simplexml_load_string()：从字符串解析 XML
• simplexml_load_file()：从文件路径加载 XML

$xmlString = '<bookstore>
  <book category="fiction">
    <title lang="en">PHP Basics</title>
    <author>John Doe</author>
    <price>29.99</price>
  </book>
</bookstore>';

$sxe = simplexml_load_string($xmlString);
if ($sxe === false) {
    die('无法解析 XML');
}

echo $sxe->book->title; // 输出: PHP Basics
echo $sxe->book->author; // 输出: John Doe

// 获取节点属性
$category = $sxe->book['category'];
echo $category; // 输出: fiction

// 获取 title 的 lang 属性
$lang = $sxe->book->title['lang'];
echo $lang; // 输出: en

$xml = '<books>
  <book><title>PHP Guide</title></book>
  <book><title>MySQL Tips</title></book>
</books>';

$sxe = simplexml_load_string($xml);

foreach ($sxe->book as $book) {
    echo $book->title . "\n";
}
// 输出:
// PHP Guide
// MySQL Tips

$sxe->book->title = 'Advanced PHP';
$sxe->book['category'] = 'programming';

echo $sxe->asXML(); // 输出修改后的 XML

// 输出字符串
echo $sxe->asXML();

// 保存到文件
$sxe->asXML('output.xml');