1
我使用obsocial提交从joomla到Facebook的文章。它只发布一篇文章链接。获取URL的内容，如Facebook墙帖
在脸书中，当你粘贴或敲击一个网址时，它会自动从带有图片的网址提取内容（如果有的话）。
是否有我可以用来实现相同的API？
A
回答
2
这可能帮助您升技
<?php
$site = file_get_contents ($url);
$meta = get_meta_tags ($url);
preg_match_all('/<img[^>]+>/i', $site, $result);
preg_match('/<title>([^>]*)<\/title>/s', $temp, $title);
?>
这是什么呢？哇！！！让我试一试 – 2011-06-09 14:14:14
get_meta_tags收集$ url中给出页面的所有元标记。 preg_match_all（'/] +>/i'，$ site，$ result）;收集页面上的所有图像 preg_match（'/ （[^>] *）<\/title>/s'，$ temp，$ title）;拿起标题 不要认为你需要更多 –
<span class="text-secondary">
<small>
<a rel="noopener" target="_blank" href="https://stackoverflow.com/users/769086/">Touchpad</a></span>
<span>2011-06-09 14:16:21</span>
</small>
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<div class="col-lg-1"><span class="text-secondary">+0</span></div>
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<p class="commenttext">你不能:-(...和你必须写足够的评论 –
<span class="text-secondary">
<small>
<a rel="noopener" target="_blank" href="https://stackoverflow.com/users/151097/">Rufinus</a></span>
<span>2011-06-09 14:19:08</span>
</small>
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<span class="count">1<i class="fa fa-thumbs-up"></i></span>
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<div class="answer fmt">
<p>我不知道一个类/ API，它提供这样的功能的。但是写出自己的想法并不难。</p>
<p>您可以使用<a href="http://php.net/manual/en/function.get-meta-tags.php" rel="nofollow">get_meta_tags()</a>来对图标记的特定页面和过滤器的所有元标记进行grep。如果他们在场，你就赢了。如果不是，你将不得不解析页面来自己找到内容。 （请参阅@Jobbdirekt Krostofer的回答）</p>
<p>请参阅<a href="http://developers.facebook.com/docs/opengraph/" rel="nofollow">http://developers.facebook.com/docs/opengraph/</a>图表元标记。</p>
<p>编辑：找到一个PHP类解析为图meta标签： <a href="http://buzzword.org.uk/2010/opengraph/#php" rel="nofollow">http://buzzword.org.uk/2010/opengraph/#php</a></p>
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<p class="text-secondary col-lg-6">
<span class="source">
<a rel="noopener" target="_blank" href="https://stackoverflow.com/q/6294204">来源</a>
</span>
</p>
<p class="text-secondary col-lg-6">
<span class="float-right date">
<span>2011-06-09 14:13:52</span>
<a rel="noopener" target="_blank" href="https://stackoverflow.com/users/151097/">Rufinus</a></span>
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<div class="post-col vote-info">
<span class="count">3<i class="fa fa-thumbs-up"></i></span>
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<div class="post-offset">
<div class="answer fmt">
<p>我发现<a href="https://github.com/stephan-fischer/jQuery-LiveUrl" rel="nofollow">jquery liveUrl</a>有助于类似的用例 <a href="http://jsfiddle.net/srikpreethy/xj4m8ptn/" rel="nofollow">Working demo</a></p>
<pre><code class="prettyprint-override"><textarea style="width: 300px; height: 100px;" placeholder="write here"></textarea>
$('textarea').liveUrl({
success : function(data)
{
console.log(data);
}
});
</code></pre>
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<span class="source">
<a rel="noopener" target="_blank" href="https://stackoverflow.com/q/33776486">来源</a>
</span>
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<span class="float-right date">
<span>2015-11-18 09:42:29</span>
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