php怎么获取某个网页链接内标签的属性

Question

php怎么获取某个网页链接内标签的属性

<iframe class="video_iframe rich_pages" data-vidtype="2" data-mpvid="wxv_2576996537818660865" data-cover="" allowfullscreen="" frameborder="0" data-ratio="1.7777777777777777" data-w="1280" style="border-radius: 4px;" data-src=""></iframe>

如果网页内含有上方标签，php怎么获取该标签内data-mpvid属性内容，能给写个实例嘛？是通过网页链接来获取

Answer 1

$data_mpvid = '';
$url = '网页链接';
$html = file_get_contents($url);
if (preg_match('#data-mpvid="(.*?)"#', $html, $arr)) {
    $data_mpvid = $arr[1];
}
echo $data_mpvid;