将PHP中的XML解析为变量

$xmlString = '<?xml version="1.0" encoding="UTF-8"?>
<bookstore>
  <book category="cooking">
    <title lang="en">The Joy of Cooking</title>
    <author>John Doe</author>
    <year>2005</year>
    <price>25.99</price>
  </book>
  <book category="children">
    <title lang="en">Harry Potter</title>
    <author>J.K. Rowling</author>
    <year>2003</year>
    <price>29.99</price>
  </book>
</bookstore>';

$xml = simplexml_load_string($xmlString);

// 访问XML元素和属性
echo $xml->book[0]->title; // 输出：The Joy of Cooking
echo $xml->book[0]['category']; // 输出：cooking

// 遍历XML数据
foreach ($xml->book as $book) {
    echo $book->title . ', ' . $book->author . ', ' . $book->year . ', ' . $book->price . '<br>';
}