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WOW RSS PHP Class – Combine and Display Multiple RSS Feeds

WOW RSS is a little PHP script that fetches either a single or multiple RSS Feeds and combines them to display on your website along with categories and dates. With added options, you can tailor the output to suit your needs. If you prefer to use the SimpleXML checkout WOW RSSX.


The Scripts has been tested on PHP 7.03 and 7.1.12. Slight changes can be made to run on PHP 5.6. Please get in touch if you require help. The script also uses cURL. If you prefer to use SimpleXML use RSSX.


Simply download, extract and place it on your PHP enabled webserver.
Version 1.2 Released- 21st December 2019

Download WOW RSS

How to Use WOW RSS

Once installed on your server you need to include the script on your PHP page.


include 'wow_rss.php';

//If it's in a subdirectory i.e class

include 'class/wow_rss.php';


Now we need to create a new instance of the class.

If you are using a single class you can:

//Single Feed
$feed = new WowSingleRss($url,$max_items,$date_format,$sort_feed);

//Calling the method to display our feeds
echo $feed->displayRss();

//Multiple Feeds
$combine = new WowMultiRss($urls,$max_items,$date_format,$sort_feed);

//Calling the method to combine and display our feeds
echo $combine->displayRss();

Both WowSingleRss and WowMultiRss take 4 arguments.

$url -WowSingleRss

(String) Required The URL for the single feed you want to fetch.

$urls – WowMultiRss

(Array) Required The URLs of the feeds you want to fetch.


(String|Int) Required The number of feeds you want to display.


(String) Required The date format you want to display. – See


(Array|Bool) Required The order in which you want to sort your feeds. Defaults to newest first if true is set.

Examples -Single Feeds

To display a single feed with the latest 10 items sorted with newest at the top and the date format  Jan 18

$url = "";
$date_format = 'M j';
$sort_feed = array('sort_order'=>'new_first');

$feed = new WowSingleRss($url,'10',$date_format,$sort_feed);
echo $feed->displayRss();

The same can also be achieved by the following

$url = "";

$feed = new WowSingleRss($url,'10','M j',true);
echo $feed->displayRss();

Display’s a single feed with 20 items sorted with oldest at the top and the date format  1-18-18

$url = "";
$date_format = 'n-j-y';
$sort_feed = array('sort_order'=>'old_first');

$feed = new WowSingleRss($url,20,$date_format,$sort_feed);
echo $feed->displayRss();

To display 2 single feeds with different options

/*Feed 1*/
$url = "";
$date_format = 'n-j-y';

$feed = new WowSingleRss($url,5,$date_format,true);
echo $feed->displayRss();

/*Feed 2*/

$url2 = "";
$sort_feed2 = array('sort_order'=>'old_first');

$feed2 = new WowSingleRss($url2,'5','j F, Y',$sort_feed2);
echo $feed2->displayRss();

Examples – Multiple Feeds Combined

Displays latest 50 items from  3 Combined Feeds with the date format 18 January 2018, sorted by newest first

$url = "";
$url2 = "";
$url3 = "";

//Above feeds Combined in array for combined multiple feeds
$urls = array($url,$url2,$url3);

$date_format = 'j F, Y';

$combine = new WowMultiRss($urls,50,$date_format,true);
echo $combine->displayRss();

This final example displays the latest 10 items from  3 Combined Feeds with the no date format, sorted by newest first

$url = "";
$url2 = "";
$url3 = "";

//Above feeds Combined in array for combined multiple feeds
$urls = array($url,$url2,$url3);

//If you don't want the date to be displayed leave the string empty
$combine = new WowMultiRss($urls,10,'',true);
echo $combine->displayRss();

Styling Your Feeds

You can optimise the style of your feeds easily using CSS.  I have therefore included a CSS file in the download for your reference. The classes to edit are:

wow_feed h2 a{}
.wow_feed h2 a:hover{}
.wow_feed .cat, .wow_feed .date{}

Further Improvements

Furthermore, if you would like to suggest an improvement to the code or request a new feature then please do get in touch. Although the PHP Script has been tested quite thoroughly it shouldn’t contain any bugs. Please report them if you do come across any.  Please remember that RSS is quite limited and in order for the script to work you have to have a valid RSS feed(s).


Stack Overflow – Multiple Curl Requests

PHP Date Function

5 replies on “WOW RSS PHP Class – Combine and Display Multiple RSS Feeds”

I am trying out your code.
php v 7.3 and curl is installed.
3 rss url strings gives following error:

Warning: array_merge_recursive(): Expected parameter 3 to be an array, bool given in class/wow_rss.php on line 229

Warning: array_walk_recursive() expects parameter 1 to be array, null given in class/wow_rss.php on line 152

using the line:
$combine = new WowMultiRss($urls,50,$date_format,true);

Colby Richmond
Colby Richmond On

Fatal error: Uncaught Error: Call to undefined function curl_multi_init() in /var/www/html/rssengine/1/class/wow_rss.php:188 Stack trace: #0 /var/www/html/rssengine/1/class/wow_rss.php(99): WowMultiRss->getFeeds() #1 /var/www/html/rssengine/1/index.php(59): WowSingleRss->displayRss() #2 {main} thrown in /var/www/html/rssengine/1/class/wow_rss.php on line 188

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