为什么PHP Simple HTML DOM分析器无法从某些URL捕获标记的内容？

Question

I'm using PHP Simple HTML DOM Parser to get the contents of the first <h1> tag on different webpages. The script works great most of the time, but on some webpages my script just kind of 'hangs up'. The script stops, without completing the code that comes after what I have listed below. I looked at the source for the pages that don't work, but there is nothing particularly different about the <h1> or its contents. Is there a way I can get this to work for all possible URL's, and if not, how can I fix my script so it won't hang up for the URL's that don't work?

include_once( 'simple_html_dom.php');
$html = file_get_html($webpage);
$element = $html->find('h1', 0);
$element = strip_tags($element);

Answer 1

我从来没有得到回应，但它似乎答案是使用卷曲来获取URL的内容，然后得到用PHP简单的HTML DOM解析器的标签信息。