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PHP網路爬蟲之抓取Open Graph(OG) Meta tags

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ChungChung
author_tools
用google爬了很多文章....

最後終於找到一篇內容.....

只是測試了半天...感覺奇怪為何內網抓的到..卻無法抓到外網的資料

搞了半天..結果是補夢網虛擬主機不能爬外網的資料.....

唉..國外的空間雖然溝通比較麻煩...但限制沒那麼多...

可以想玩什麼功能就可以測試...也便宜多了........雖然國內方便...可是服務還是有差......

把範例紀錄下來

首先是php code

function get_tags($url) {

$html = file_get_contents($url);

@libxml_use_internal_errors(true);
$dom = new DomDocument();
$dom->loadHTML($html);
$xpath = new DOMXPath($dom);
$query = '//*/meta[starts-with(@property, \'og:\')]';
$result = $xpath->query($query);

foreach ($result as $meta) {
$property = $meta->getAttribute('property');
$content = $meta->getAttribute('content');

// replace og
$property = str_replace('og:', '', $property);
$list[$property] = $content;
}
return $list;
}

接著是使用方式

$url = 'http://www.example.com/';
$meta = get_tags($url);

echo $meta['locale'];
echo $meta['type'];
echo $meta['title'];
echo $meta['description'];
echo $meta['url'];
echo $meta['site_name'];
echo $meta['image'];


原文連結 http://9bugs.in/get-facebook-open-graphog-meta-tags-php-234
https://innstory.com/story-PHP網路爬蟲之抓取Open_GraphOG_Meta_tags-195

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About the Author

Chung

我是chung
網路工作者
主業是網站系統開發建置
副業是做夢,寫故事
作品請參考/teme.biz
做夢請參考/innstory.com
聯絡/chung.teme@gmail.com

#有人用筆寫日記,有人用歲月寫日記,有人用照片寫日記,而我,用innstory寫日記。

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