如何使用Feedzirra / Feedjira跳过解析RSS提要中的推广图像内容

Question

我正在使用名为feedjira的gem来解析rails中的rss提要。

Feedjira::Feed.add_feed_class Feedjira::Parser::RSS
feed = Feedjira::Feed.fetch_and_parse site[:url]
news = feed.entries

例如，它返回以下摘要字段值

"WASHINGTON, Aug 10 - Guggenheim Partners Investment Management LLC has agreed 
to pay $20 million to settle federal charges that it failed to disclose a
$50 million loan by a client to a senior executive, the Securities and  
Exchanges Commission said on Monday.<br clear='all'/><br/><br/>
<a href="http://rc.feedsportal.com/r/234566992987/u/0/f/415367.htm" 
rel="nofollow">
<img src="http://rc.feedsportal.com/r/234566992987/u/0/f/rc.img"
border="0"/></a><br/><br/>
<a href="http://rc.feedsportal.com/r/234566992987/u/0/rc.htm"
rel="nofollow">
<img src="http://rc.feedsportal.com/r/234566992987/u/rc.img"
border="0"/></a><br/><br/><a href="http://da.feedsportal.com
/r/234566992987/u/0/f/a2.htm">
<img src="http://da.feedsportal.com/r/234566992987/a2.img" 
border="0"/></a><img width="1" height="1"
src="http://pi.feedsportal.com/r/234566992987/u/0/f/a2t.img"
 border="0"/>"

如何删除/跳过内容中的推广图像?

Answer 1

function rss_refine_string($get_rtext){
    $get_rtext = str_replace(""", "", $get_rtext);
    $get_rtext = str_replace("&lt;", "<", $get_rtext);
    $get_rtext = str_replace("&gt;", ">", $get_rtext);
    return $get_rtext;
}