PHP学习笔记：XML与JSON数据的解析

$xml = '<book>
            <title>PHP学习笔记</title>
            <author>张三</author>
            <price>99.9</price>
        </book>';

$data = simplexml_load_string($xml);

echo "书名：" . $data->title . "<br>";
echo "作者：" . $data->author . "<br>";
echo "价格：" . $data->price . "<br>";

$xml = '<book>
            <title>PHP学习笔记</title>
            <author>张三</author>
            <price>99.9</price>
        </book>';

$dom = new DOMDocument();
$dom->loadXML($xml);

$title = $dom->getElementsByTagName('title')->item(0)->nodeValue;
$author = $dom->getElementsByTagName('author')->item(0)->nodeValue;
$price = $dom->getElementsByTagName('price')->item(0)->nodeValue;

echo "书名：" . $title . "<br>";
echo "作者：" . $author . "<br>";
echo "价格：" . $price . "<br>";

$json = '{
            "book": {
                "title": "PHP学习笔记",
                "author": "张三",
                "price": 99.9
            }
        }';

$data = json_decode($json);

echo "书名：" . $data->book->title . "<br>";
echo "作者：" . $data->book->author . "<br>";
echo "价格：" . $data->book->price . "<br>";

$data = json_decode($json, true);