WordPress Aggregator Plugin can gather information from other sites and display them,use PHP or the Shortcode.The plugin use the standards of WordPress, non extra library; use <a href="http://simplepie.org/" rel="nofollow ugc">SimplePie</a> for parse feeds.
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Use following code with a PHP-Plugin or in a template, example <code>single.php</code>, for WordPress:
Example for function:

Example for Shortcode: 
[WPAggregator perpage=6 maxto=6 istruncate=’true/false’ truncatedescchar=600 truncatedescstring=’…’ date_format=” target = ‘_blank’] 
_ 
For boolean parameter($istruncate) it is possible to use the string ‘true’ or ‘false’.
The plugin have many parameters for custom import and display content form feeds. See the list of parameters. You can also use all parameters with shorcode in posts and pages.
$perpage: Each page display how many items,default is ‘6’ 
$maxto: Most show how many pages,default is ‘6’ 
$istruncate: (bool)truncate content or not,default is ‘true’ 
$truncatedescchar: truncate content, number of chars, Default is ‘600’ 
$truncatedescstring: string after truncate content, Default is ‘ … ‘ 
$date_format: your format for the date, leave empty for use format of your WordPress installation, alternativ give the php date string, Example: ‘F j, Y’; see also:https://codex.wordpress.org/Formatting_Date_and_Time 
$target: string with the target-attribut, Default is ‘_blank’; use ‘_blank’, ‘_self’, ‘_parent’, ‘_top’

WordPress Aggregator

WordPress Aggregator Plugin can gather information from other sites and display them.

sharespring

ShareSpring is a service that finds great user-generated content and embeds a beautiful gallery of the best posts onto your website.
Search for posts on Twitter, Instagram, Facebook, YouTube, and RSS. Pick which posts to embed on your website.
Display your own posts from all of your social networks, or find public posts, or mix everything together.

WordPress Aggregator vs ShareSpring