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怎么检查到一篇文章中有连结就自动加上标签

时间：2021-07-01 10:21:17 帮助过：16人阅读

如何检查到一篇文章中有连结就自动加上标签?
本帖最后由 sky94132003 于 2014-09-26 04:10:26 编辑

以为不能用网上的既有的资源，以及比较难搞的点...就是内容是还有可能需要过滤图片及影片的网址(iframe)

我用了以下这一段做自动检测有连结的话就自动加上

但问题是有时候是图片

有时间是影片.(影片将会以iframe)模式显示

所以想请教一下，如何才能把图片() 影片() 这类东西过滤(跳过不处理)</strong><br /><br />获得的$content已经是已成HTML的代码<br /><br /><pre class="brush: php"><br /> $content= preg_replace_callback('#(?:https?://\S+)|(?:www.\S+)|(?:\S+\.\S+)#', function($arr)<br /> {<br /> if(strpos($arr[0], 'http://') !== 0)<br /> {<br /> $arr[0] = 'http://' . $arr[0];<br /> }<br /> $url = parse_url($arr[0]);<br /><br /> //links<br /> return sprintf('%1$s', $arr[0]);<br /> }, $content);<br /></pre><br><font color='#FF8000'>------解决思路----------------------</font><br>參考：http://blog.baiwand.com/?post=150 </div> <div class=""> <ul class="m-news-opt fix"> <li class="opt-item"> <a href='/PHPjiqiao-126911.html' target='_blank'><p>< 上一篇</p><p class="ellipsis">这个正则该如何写？高手来帮帮忙</p></a> </li> <li class="opt-item ta-r"> <a href='/PHPjiqiao-126913.html' target='_blank'><p>下一篇 ></p><p class="ellipsis">检测客户端,该怎么处理</p></a> </li> </ul> </div> </div> </div> <div class="g-title fix"> <h2 class="title-txt">人气教程排行</h2> </div> <div class="m-rank u-dashed mb40"> <ul> 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