php截取标签怎么截

<?php
$html = '<div class="example">Hello, World!</div>';
$pattern = '/<div class="example">(.*?)<\/div>/';
preg_match($pattern, $html, $matches);

if (isset($matches[1])) {
    $content = $matches[1];
    echo "截取的内容: " . $content; // 输出: Hello, World!
} else {
    echo "未找到匹配的内容";
}
?>

<?php
$html = '<div class="example">Hello, World!</div>';
$dom = new DOMDocument();
@$dom->loadHTML($html);
$divs = $dom->getElementsByTagName('div');
foreach ($divs as $div) {
    if ($div->getAttribute('class') == 'example') {
        echo "截取的内容: " . $div->nodeValue; // 输出: Hello, World!
    }
}
?>