我见过
this question,但它并不能满足我的需求.该问题的答案要么是：从元描述标签中提升,第二个是为您已经拥有主体的文章生成摘录.
我想要做的实际上是获得文章的前几句话,如可读性.这不是最好的方法吗？ HTML解析？这是我目前使用的,但这不是很可靠.
function guessExcerpt($url) {
$html = file_get_contents_curl($url);
$doc = new DOMDocument();
@$doc->loadHTML($html);
$Metas = $doc->getElementsByTagName('Meta');
for ($i = 0; $i < $Metas->length; $i++)
{
$Meta = $Metas->item($i);
if($Meta->getAttribute('name') == 'description')
$description = $Meta->getAttribute('content');
}
return $description;
}
function file_get_contents_curl($url) {
$ch = curl_init();
curl_setopt($ch,CURLOPT_HEADER,0);
curl_setopt($ch,CURLOPT_RETURNTRANSFER,1);
curl_setopt($ch,CURLOPT_TIMEOUT,5);
curl_setopt($ch,CURLOPT_URL,$url);
curl_setopt($ch,CURLOPT_FOLLOWLOCATION,1);
$data = curl_exec($ch);
curl_close($ch);
return $data;
}
这是PHP中的可读性端口：
https://github.com/feelinglucky/php-readability.试试吧.提取结果类似于Readability(因为它实现了Readability的算法).
原文链接：https://www.f2er.com/php/240226.htmlrequire 'lib/Readability.inc.PHP'; $html = file_get_contents_curl($url); $Readability = new Readability($html,$html_input_charset); // default charset is utf-8 $ReadabilityData = $Readability->getContent(); $title = $ReadabilityData['title']; $content = $ReadabilityData['content'];
然后你可以使用$content中的一些句子作为摘录.
