如何从php获取wiki标题？

<?php
// 设置API的URL和请求参数
$url = 'https://en.wikipedia.org/w/api.php';
$params = array(
    'action' => 'query',
    'format' => 'json',
    'titles' => 'Main_Page',
);

// 发送HTTP请求
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $url . '?' . http_build_query($params));
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
$response = curl_exec($ch);
curl_close($ch);

// 解析API响应
$result = json_decode($response, true);
if (isset($result['query']['pages'])) {
    // 提取页面标题
    $pages = $result['query']['pages'];
    foreach ($pages as $page) {
        $title = $page['title'];
        echo $title;
    }
}
?>

<?php
// 获取维基页面内容
$html = file_get_contents('https://en.wikipedia.org/wiki/Main_Page');

// 创建DOM对象
$dom = new DOMDocument();
libxml_use_internal_errors(true);
$dom->loadHTML($html);
libxml_use_internal_errors(false);

// 获取标题元素
$titleElement = $dom->getElementsByTagName('title')->item(0);
if ($titleElement) {
    $title = $titleElement->textContent;
    echo $title;
}
?>