RSS Reader Plugin
This simple HTMLe plugin allows you to highlight PHP code by including either a small block of text, or by setting a file.
Plugin attributes:
url = the url of the feed to grab
posts = the number of posts to show
words = the number of words to show for each post
skipfirst = skip the first number of words
endwith = end each post with (ie: … or ‘more’)
style = html code to display the posts using %title%, %description%, and %link% to refer to post characteristics.
This plugin is included in the HTMLe library by default for versions 2.0 and higher.
<?php
/*
* HTMLe plugin
* --------------------
* File: rssreader.php
* Type: function
* Name: rssreader
* Purpose: read external rss feeds
* Author: Michael Stowe
* Example: {rssreader url="http://rss.cnn.com/rss/cnn_topstories.rss" posts="5" words="25" style="<strong><a href((%link%)) target='_blank'>%title%</a></strong><br />%description%<br /><br />"}
* Required: url
* Special: For style attribute:<ul><li>%link% = url</li><li>%title% = title</li><li>%description% = description</li></ul>
* Advanced: {rssreader url="http://rss.cnn.com/rss/cnn_topstories.rss" posts="5" words="25" style="<strong><a href((%link%)) target='_blank'>%title%</a></strong><br />%description%<br /><br />"}
* --------------------
*/
function HTMLe_rssreader($params, $return='') {
$feed_url = (!empty($params['url'])?$params['url']:'http://rss.cnn.com/rss/cnn_topstories.rss');
$feed_number = (!empty($params['posts'])?$params['posts']:'5');
$wordsize = (!empty($params['words'])?$params['words']:'25');
$skip = (!empty($params['skipfirst'])?$params['skipfirst']:'0');
$endwith = (!empty($params['endwith'])?$params['endwith']:'');
$library = simplexml_load_file($feed_url);
$i = 1;
foreach($library->channel->item as $item) {
if($i <= $feed_number) {
$find = array("\n \n","\r \r","\n\n","\r\r","\n","\r"," ");
$replace = array("\n","\r","\n","\r",' ',' ',' ');
$words = explode(" ",str_replace($find,$replace,$item->description));
$words = array_slice($words,$skip);
array_splice($words,$wordsize);
if(!isset($params['style'])) {
$return .= '<a href="'.$item->link.'" target="_blank" style="font-weight: strong;">'.$item->title.'</a><br />';
$return .= implode(" ",$words).$endwith.'<br /><br />';
} else {
$key = array('%link%','%title','%description%');
$value = array($item->link, $item->title, implode(" ",$words).$endwith);
$return .= str_replace($key,$value,$params['style']);
}
$i++;
} else {
break;
}
}
return $return;
}
?>
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